Repository: PyCOMPLETE/PyHEADTAIL (language: python)

Issue:
Updating develop branch with latest master/main changes



Discussion / hints:

Fix patch:
diff --git a/.github/workflows/github-ci.yaml b/.github/workflows/github-ci.yaml
deleted file mode 100644
index b3ba484e..00000000
--- a/.github/workflows/github-ci.yaml
+++ /dev/null
@@ -1,33 +0,0 @@
-# This is a basic workflow to help you get started with Actions
-
-name: tests
-
-# Controls when the action will run. Triggers the workflow on push or pull request
-# events but only for the master branch
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-# A workflow run is made up of one or more jobs that can run sequentially or in parallel
-jobs:
-  # This workflow contains a single job called "build"
-  build:
-    # The type of runner that the job will run on
-    runs-on: ubuntu-latest
-
-    # Steps represent a sequence of tasks that will be executed as part of the job
-    steps:
-    # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-    - uses: actions/checkout@v2
-
-    # Runs a single command using the runners shell
-    - name: Run a one-line script
-      run: echo Hello, world!
-
-    # Runs a set of commands using the runners shell
-    - name: Run a multi-line script
-      run: |
-        echo Add other actions to build,
-        echo test, and deploy your project.
diff --git a/.github/workflows/manual-ci.yaml b/.github/workflows/manual-ci.yaml
deleted file mode 100644
index 14f0dcb7..00000000
--- a/.github/workflows/manual-ci.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: manual
-on:
-  workflow_dispatch:
-    inputs:
-      name:
-        description: 'Person to greet'
-        required: true
-        default: 'Mona the Octocat'
-      home:
-        description: 'location'
-        required: false
-
-jobs:
-  say_hello:
-    runs-on: ubuntu-latest
-    steps:
-    - run: |
-        echo "Hello ${{ github.event.inputs.name }}!"
-        echo "- in ${{ github.event.inputs.home }}!"
diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
deleted file mode 100644
index cfb18417..00000000
--- a/.github/workflows/python-package.yml
+++ /dev/null
@@ -1,40 +0,0 @@
-# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
-# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
-
-name: build
-
-on:
-  push:
-    branches: [ playground/ci_testing ]
-  pull_request:
-    branches: [ playground/ci_testing ]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: ['2.7']
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install flake8 pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
-    - name: Lint with flake8
-      run: |
-        # stop the build if there are Python syntax errors or undefined names
-        #flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        #flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
-        print "I ran!"
-#     - name: Test with pytest
-#       run: |
-#         pytest
diff --git a/.gitignore b/.gitignore
index 64a33c5f..9a28da9a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@ scripts/
 .DS_Store
 *.__afs*
 *.egg-info
+/.eggs/
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index e7d6b37f..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,16 +0,0 @@
-language: python
-
-python:
-  - "3.6"      # current default Python on Travis CI
-#  - "3.7"
-#  - "3.8"
-#  - "3.8-dev"  # 3.8 development branch
-  - "nightly"  # nightly build
-
-# command to install dependencies
-install:
-  - pip install -r requirements.txt
-
-# command to run tests
-script:
-  - pytest
diff --git a/MANIFEST.in b/MANIFEST.in
index d1a5a3c1..07c5c472 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,2 @@
 recursive-include PyHEADTAIL *.pxd *.pyx *.c *.f90 *.cu
-recursive-include PyHEADTAIL/testing *.py *.dat
 include README.rst
diff --git a/Makefile b/Makefile
index 63cb543f..0e4b38eb 100755
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ NVCC_TEST := $(notdir $(NVCC_RESULT))
 all: PyHEADTAIL PyHEADTAILGPU errfff
 
 PyHEADTAIL:
-	python setup.py build_ext --inplace
+	python3 setup.py build_ext --inplace
 
 PyHEADTAILGPU:
 ifeq ($(NVCC_TEST),nvcc)
@@ -17,7 +17,7 @@ else
 endif
 
 errfff:
-	f2py -c PyHEADTAIL/general/errfff.f90 -m errfff
+	f2py3 -c PyHEADTAIL/general/errfff.f90 -m errfff
 	mv errfff*.so PyHEADTAIL/general/
 
 clean:
diff --git a/PULL_REQUEST_TEMPLATE.md b/PULL_REQUEST_TEMPLATE.md
deleted file mode 100644
index 37685ca5..00000000
--- a/PULL_REQUEST_TEMPLATE.md
+++ /dev/null
@@ -1,8 +0,0 @@
-# Reminder
-
-By using GitHub you have agreed to the GitHub's Terms of Use, including that 
-
-1) you license your contribution under the same terms as the current repository's license, and 
-2) that you agree that you have the right to license your contribution under the current repository's license.
-
-See https://help.github.com/articles/github-terms-of-service/#6-contributions-under-repository-license.
diff --git a/PyHEADTAIL/__init__.py b/PyHEADTAIL/__init__.py
index 42c14d1b..2218663e 100644
--- a/PyHEADTAIL/__init__.py
+++ b/PyHEADTAIL/__init__.py
@@ -1,75 +1,22 @@
-try:
-    DYNAMIC_VERSIONING = True
-    import os, subprocess
-    worktree = os.path.dirname(
-        os.path.dirname(os.path.abspath(__file__)))
-    gitdir = worktree + '/.git/'
-    with open(os.devnull, 'w') as devnull:
-        __version__ = subprocess.check_output(
-            'git --git-dir=' + gitdir + ' --work-tree=' +
-            worktree + ' describe --long --dirty --abbrev=10 --tags',
-            shell=True, stderr=devnull)
-    __version__ = __version__.decode('utf-8').rstrip() # remove trailing \n
-    __version__ = __version__[1:] # remove leading v
-    # remove commit hash to conform to PEP440:
-    split_ = __version__.split('-')
-    __version__ = split_[0]
-    if split_[1] != '0':
-        __version__ += '.' + split_[1]
-    dirty = 'dirty' in split_[-1]
-except:
-    DYNAMIC_VERSIONING = False
-    from ._version import __version__
-    dirty = False
+from . import aperture
+from . import cobra_functions
+from . import feedback
+from . import field_maps
+from . import general
+from . import gpu
+from . import impedances
+from . import machines
+from . import monitors
+from . import multipoles
+from . import particles
+from . import radiation
+from . import rfq
+from . import spacecharge
+from . import trackers
 
-print(('PyHEADTAIL v' + __version__))
-if dirty:
-    print ('(dirty git work tree)')
-print ('\n')
+from ._version import __version__
+
+Particles = particles.Particles
+
+print('PyHEADTAIL v' + __version__)
 
-# print '                                                                                                                             '
-# print '                                                                ;Cfttttt11111111tttt1f0f.                                    '
-# print '                                                                ,GttttfG0GGG00000GGG0G0G0G0G0G0Ct1t1fG:                      '
-# print '                                                           ,GtttLG000GGGGGGGGGGG00GGGGGGGGGGGGGG0GGG0GCtttLt                 '
-# print '                                                       .CtttC0G00GGGGGGGGGGG00t1t1GGGGGGGGGGGGGGGGGG0GG0G00Gtttt             '
-# print '                                                     G1tf000GGGGGGGGGG000811tGG0GL0GGGGGGGGGGGGGGGGGGGGGGGGGGGGG11C          '
-# print '                                                  GtttGG0G00GGGGGGGGG08t1GGG0;;0G000GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGtt:       '
-# print '                                                01tGG00GGGGGGGGGGGG0tt000ft::::GGG00GGGGGGGGGGGGGGGGGGG0GGG0G0000000GftG     '
-# print '                              L1tLf.          8ttGGGGGGGGGGGGGG00GtGG8fft:::::;0GG@0GGGGGGGGGGGGG00G088888888888GttfLLLt1C   '
-# print '                              CtG0G0GG8888t.G1tGGGGGGGGGGGGGGG0fGG0ffff;:::::::0G08GGGGGGGGGGGG888888888888f                 '
-# print '                              .tt0GGGGG0888Ctf0GGGGGGGGGGGG0G0000GGGG0Gt;:;:::;0GG88GGGGG8808888888888C                      '
-# print '                               C1GGGGGG0G01t00GGGGGGGGGGGGG00000000GGGGGGGG;::;GGG80GGGGGGGG0Lt1t@@i                         '
-# print '                                1tGGGGG0811G00GGGGGGGGGGGGGGGG0880G0GGGGGG0G0;L0G08GGGGGGGGGGG0GGG1ttf                       '
-# print '                                t1t0GG08t1G0GGGGGGGGGGGGG0GtLGGGG0GLtGGGGGGGGG8G08GGGGGGGGGGGGGGGGG00tttf                    '
-# print '                                 0tCGG8tt00GGGGGGGGG0G0CtG0GG0GGG000GGt00GGGG000GGGGGGGGGGGGGGGGGGGGGG0G1tG                  '
-# print '                                  0G0G81G0GGGGGGGGGG0Gf00GG8888@8@80GGG0CGGG0GGGGGGGGGGGGGGGGGGGGGGGGGG000ttL                '
-# print '                                  C11GG080GGGGGGGG00t0GG08@111: .i1t80GG08GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGt1C              '
-# print '                                  f0@tGGGGGGGGGGG00C0GG88i1         1GG0G0GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG0GGttC            '
-# print '                                  G88ffG0GGGGGG0G0GGG0811.           .0GG08GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG0Gt1L           '
-# print '                        C      .C .0G1800GGGGGG0G00f0811              .0G00GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG0G11i         '
-# print '                      L         1  Lt 11GGGGGGG000ft81:     .8;        0G0GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG0GG001t0        '
-# print '         L:     .C   1        f     t  8CG00GGGG0G181,      0G00       00G0GG0GGGGGGGGGGGGGGGGGGGGGGGG0GGGGGGGGGGGGtt8       '
-# print '      f.           . .;iC   ..      C  .tGLG0GGGGt01.       0, Gi      0GGGGGGGGGGGGGGGGGGG0GGGGGGGGGGGGGGGGGGGGGGGGtt8      '
-# print '      CL0t .G1111   :      G        1  08t8L0000t11:        00@8L     t0GGGGGGGGGGGGGGGGGGG80GGGGGGGGGGGGGGGGGGGGGGGG11L     '
-# print '   1           C1   i     f          , :,0C10G0Ltf:         :C8@1    :00GGGGGGGGGGGGGGGGGGGGG8888880000GGGGGGGGGGGGGGCtt.    '
-# print '   ,1G:C111.    .1   i    i          i  0@80ttt10i           G111   fGGG0GGGGGGGGGGGGGGGGGGGGG8888888888GGG0GGGGGGGGGGtt0    '
-# print '  ;        tL1   01 ;              Gf C  00. LG1               f  f;;:::;;:8GGGGGGGGGGGGGGG0GGGt888888888880GGGGGGGG00Gtt.   '
-# print '    i1i      C1   i111     .      C8@G  i0,G;::;C1             .t;:;:;::::::0GGGG00GGGGGGGGGGG0G11 .G8@8888880GGGGGGGGGL1G   '
-# print ' L111tt1111.  1;  1111.   .         @888@@888:;:;;:;;;0.    :t::::;:   :::::8GG88GGGGG0GGGGGGGGGC1,      8888@8800GGGGGG1t   '
-# print '  8       C1  f    L11i  ;. 1.          ;.:;:::::::::::::::::::::;;   ;;:::10G880GGGGGGGGGGGGGG0GL1         ,88888G0GGG0f1.  '
-# print ' G  .i,    .1 G     ,1110f                L.::::::::::::::::::::;. i.L;;:;LG88888G0GGGGGGGGGGGGGG0tf           ,88880GGGGt;  '
-# print '  t111111;  :11      f11L    G              .1.::::::::::::;CC;:;:;:::;;C88888888880GGGGGGGGGGGGG0G1G             0@8000G1t  '
-# print '   L1Cf011. ;11     .11G    t1.L                ,L,.::::::;:::::;:::C@888888888888888G000GGGGGGGGGGt1               f880GtL  '
-# print '    .G111111111.   .1t.    111..                .:LG8888@88088@0tfL@G       t88888888880GGGGGGGGG0GCti                CC0tL  '
-# print '        ;L111111110.      .1C  i              :..::;ft888888888ffffffftt8.       08888880GGGGGGGGGGGtG                  tti  '
-# print '             G11i,,,,.        0            :L..;:::::;ffC88888888fffi::::::..C;     C88888GGG0GGGG0GtC                   f.  '
-# print '                .Gf11111.   :Cff.C     ,tftL.,;:::::::::;f888888888881:;:::::::..i.    888800GGGGGG01L                       '
-# print '                 i1111111111ffft;:.....::ft..:::::::::::::0G000GGGG8888880f;;;::::..     88880GGGGGGtf                       '
-# print '                      ..  iffff;:::::::;ttC.::::::::::::::0GGGG0GC888888800t G::::;.G      @88GGGGGGtf                       '
-# print '                            . G::::::;1:  L.;:;:::::::::::GG0G0Gf888888  Gi10::::;:.       .;@8GGGGGtC                       '
-# print '                                          ,.:::::::::::::;0GG1  L888 1L  fG:;:::::.           880GGG1C                       '
-# print '                                           .,:::::::::::;80i......   1G   tf;:::.;             880001.                       '
-# print '                                           :.:::::::::::t.        .        GftftC,G             G0Gtt                        '
-# print '                                            :.:;::::::;i ,                   Ct11G               LC1i                        '
-# print '                                              1:::::::1001         C              .               tf                         '
-# print '                                                                                                                             '
diff --git a/PyHEADTAIL/_version.py b/PyHEADTAIL/_version.py
index c162747f..654b4b95 100644
--- a/PyHEADTAIL/_version.py
+++ b/PyHEADTAIL/_version.py
@@ -1,1 +1,1 @@
-__version__ = '1.14.1'
+__version__ = '1.14.2'
diff --git a/PyHEADTAIL/cobra_functions/pdf_integrators_2d.py b/PyHEADTAIL/cobra_functions/pdf_integrators_2d.py
index 92437b2e..fb7b3e97 100644
--- a/PyHEADTAIL/cobra_functions/pdf_integrators_2d.py
+++ b/PyHEADTAIL/cobra_functions/pdf_integrators_2d.py
@@ -53,9 +53,9 @@ def compute_mean_quad(psi, ylimit_min, ylimit_max, xmin, xmax, direction='x'):
     '''
 
     Q = compute_zero_quad(psi, ylimit_min, ylimit_max, xmin, xmax)
-    if direction is 'x':
+    if direction == 'x':
         f = lambda y, x: x * psi(x, y)
-    elif direction is 'y':
+    elif direction == 'y':
         f = lambda y, x: y * psi(x, y)
     else:
         raise ValueError('direction needs to be either "x" or "y".')
@@ -83,9 +83,9 @@ def compute_var_quad(psi, ylimit_min, ylimit_max, xmin, xmax, direction='x'):
 
     Q = compute_zero_quad(psi, ylimit_min, ylimit_max, xmin, xmax)
     M = compute_mean_quad(psi, ylimit_min, ylimit_max, xmin, xmax, direction)
-    if direction is 'x':
+    if direction == 'x':
         f = lambda y, x: (x - M)**2 * psi(x, y)
-    elif direction is 'y':
+    elif direction == 'y':
         f = lambda y, x: (y - M)**2 * psi(x, y)
     else:
         raise ValueError('direction needs to be either "x" or "y".')
@@ -174,9 +174,9 @@ def compute_mean_cumtrapz(psi, ylimit_min, ylimit_max, xmin, xmax,
     x_arr = np.linspace(xmin, xmax, num=n_samples)
     dx = x_arr[1] - x_arr[0]
 
-    if direction is 'x':
+    if direction == 'x':
         f = lambda x, y: x * psi(x, y)
-    elif direction is 'y':
+    elif direction == 'y':
         f = lambda x, y: y * psi(x, y)
     else:
         raise ValueError('direction needs to be either "x" or "y".')
@@ -216,9 +216,9 @@ def compute_var_cumtrapz(psi, ylimit_min, ylimit_max, xmin, xmax,
     x_arr = np.linspace(xmin, xmax, num=n_samples)
     dx = x_arr[1] - x_arr[0]
 
-    if direction is 'x':
+    if direction == 'x':
         f = lambda x, y: (x - M)**2 * psi(x, y)
-    elif direction is 'y':
+    elif direction == 'y':
         f = lambda x, y: (y - M)**2 * psi(x, y)
     else:
         raise ValueError('direction needs to be either "x" or "y".')
diff --git a/PyHEADTAIL/general/decorators.py b/PyHEADTAIL/general/decorators.py
index 348062a1..11fe4a5b 100644
--- a/PyHEADTAIL/general/decorators.py
+++ b/PyHEADTAIL/general/decorators.py
@@ -52,8 +52,9 @@ def synchronize_gpu_streams_before(func):
     synchronized before this function is called
     '''
     def sync_before_wrap(*args, **kwargs):
-        for stream in gpu_utils.streams:
-            stream.synchronize()
+        if gpu_utils.use_streams:
+            for stream in gpu_utils.streams:
+                stream.synchronize()
         return func(*args, **kwargs)
     return sync_before_wrap
 
@@ -64,7 +65,8 @@ def synchronize_gpu_streams_after(func):
     '''
     def sync_after_wrap(*args, **kwargs):
         res = func(*args, **kwargs)
-        for stream in gpu_utils.streams:
-            stream.synchronize()
+        if gpu_utils.use_streams:
+            for stream in gpu_utils.streams:
+                stream.synchronize()
         return res
     return sync_after_wrap
diff --git a/PyHEADTAIL/general/pmath.py b/PyHEADTAIL/general/pmath.py
index 66cd4277..36862c32 100644
--- a/PyHEADTAIL/general/pmath.py
+++ b/PyHEADTAIL/general/pmath.py
@@ -203,6 +203,10 @@ def _slice_to_particles(sliceset, slice_array, particle_array=None):
     'mean': np.mean,
     'std': cp.std,
     'emittance': lambda *args, **kwargs: cp.emittance(*args, **kwargs),
+    'dispersion': cp.dispersion,
+    'get_alpha': cp.get_alpha,
+    'get_beta': cp.get_beta,
+    'get_gamma': cp.get_gamma,
     'min': np.min,
     'max': np.max,
     'diff': np.diff,
@@ -263,13 +267,17 @@ def _slice_to_particles(sliceset, slice_array, particle_array=None):
         'exp': pycuda.cumath.exp,
         'log': pycuda.cumath.log,
         'cosh': pycuda.cumath.cosh,
-        'mean': gpu_wrap.mean,#lambda *args, **kwargs: skcuda.misc.mean(*args, **kwargs),
+        'mean': gpu_wrap.mean, #lambda *args, **kwargs: skcuda.misc.mean(*args, **kwargs),
         'std': gpu_wrap.std,
-        'emittance': lambda u, up, dp=None, **kwargs: gpu_wrap.emittance(u, up, dp, **kwargs),
+        'emittance': gpu_wrap.emittance,
+        'dispersion': gpu_wrap.dispersion,
+        'get_alpha': gpu_wrap.get_alpha,
+        'get_beta': gpu_wrap.get_beta,
+        'get_gamma': gpu_wrap.get_gamma,
         'min': lambda *args, **kwargs: pycuda.gpuarray.min(*args, **kwargs).get(),
         'max': lambda *args, **kwargs: pycuda.gpuarray.max(*args, **kwargs).get(),
         'diff': lambda *args, **kwargs: skcuda.misc.diff(*args, **kwargs),
-        'floor': lambda *args, **kwargs: pycuda.cumath.floor(*args, **kwargs),
+        'floor': pycuda.cumath.floor,
         'argsort': gpu_wrap.argsort,
         'apply_permutation': gpu_wrap.apply_permutation,
         'mean_per_slice': gpu_wrap.sorted_mean_per_slice,
diff --git a/PyHEADTAIL/gpu/gpu_utils.py b/PyHEADTAIL/gpu/gpu_utils.py
index 3e777599..dbde3f14 100644
--- a/PyHEADTAIL/gpu/gpu_utils.py
+++ b/PyHEADTAIL/gpu/gpu_utils.py
@@ -6,6 +6,8 @@
 @author Stefan Hegglin
 '''
 
+use_streams = False
+
 import atexit
 from itertools import cycle
 
@@ -15,7 +17,8 @@
     import pycuda.elementwise
     has_pycuda = True
     try:
-        pycuda.driver.mem_get_info()
+        drv.mem_get_info()
+        import pycuda.autoinit
     except pycuda._driver.LogicError: #the error pycuda throws if no context initialized
         # print ('No context initialized. Please import pycuda.autoinit at the '
         #        'beginning of your script if you want to use GPU functionality')
@@ -27,9 +30,8 @@
 
 if has_pycuda:
 
-    device = pycuda.autoinit.device
-    context = pycuda.autoinit.context
-    driver = drv
+    device = drv.Context.get_device() #pycuda.autoinit.device
+    context = drv.Context.get_current() #pycuda.autoinit.context
 
     memory_pool = pycuda.tools.DeviceMemoryPool()
 
@@ -38,11 +40,16 @@
     atexit.register(skcuda.misc.shutdown)
 
     n_streams = 4
-    streams = [drv.Stream() for i in range(n_streams)]
-    stream_pool = cycle(streams)
+    n_streams_emittance = 6
 
-    stream_emittance = [drv.Stream() for i in range(6)]
+    if use_streams:
+        streams = [drv.Stream() for i in range(n_streams)]
+        stream_emittance = [drv.Stream() for i in range(n_streams_emittance)]
+    else:
+        streams = [None] * n_streams
+        stream_emittance = [None] * n_streams_emittance
 
+    stream_pool = cycle(streams)
 
     def dummy_1(gpuarr, stream=None):
         __dummy1(gpuarr, stream=stream)
diff --git a/PyHEADTAIL/gpu/gpu_wrap.py b/PyHEADTAIL/gpu/gpu_wrap.py
index 6d43597d..4dc6cc8d 100644
--- a/PyHEADTAIL/gpu/gpu_wrap.py
+++ b/PyHEADTAIL/gpu/gpu_wrap.py
@@ -17,7 +17,7 @@
     import pycuda.compiler
     import pycuda.driver as drv
     import pycuda.elementwise
-    import PyHEADTAIL.gpu.thrust_interface
+    from PyHEADTAIL.gpu import thrust_interface
 
     # if pycuda is there, try to compile things. If no context available,
     # throw error to tell the user that he should import pycuda.autoinit
@@ -90,6 +90,40 @@ def _multiply(a, b, out=None, stream=None):
             b.gpudata, out.gpudata, a.mem_size)
         return out
 
+    def _subtract(a, b, out=None, stream=None):
+        '''Elementwise subtraction of two gpuarray specifying a stream
+        Required because gpuarray.__sub__ has no stream argument'''
+        if out is None:
+            out = _empty_like(a)
+        func = pycuda.elementwise.get_binary_op_kernel(a.dtype, b.dtype,
+            out.dtype, "-")
+        func.prepared_async_call(a._grid, a._block, stream, a.gpudata,
+            b.gpudata, out.gpudata, a.mem_size)
+        return out
+
+    def _add(a, b, out=None, stream=None):
+        '''Elementwise addition of two gpuarray specifying a stream
+        Required because gpuarray.__add__ has no stream argument'''
+        if out is None:
+            out = _empty_like(a)
+        func = pycuda.elementwise.get_binary_op_kernel(a.dtype, b.dtype,
+            out.dtype, "+")
+        func.prepared_async_call(a._grid, a._block, stream, a.gpudata,
+            b.gpudata, out.gpudata, a.mem_size)
+        return out
+
+    def _divide(a, b, out=None, stream=None):
+        '''Elementwise division of two gpuarray specifying a stream
+        Required because gpuarray.__div__ has no stream argument'''
+        if out is None:
+            out = _empty_like(a)
+        func = pycuda.elementwise.get_binary_op_kernel(a.dtype, b.dtype,
+            out.dtype, "/")
+        func.prepared_async_call(a._grid, a._block, stream, a.gpudata,
+            b.gpudata, out.gpudata, a.mem_size)
+        return out
+
+
     _arange_gpu_float64 = pycuda.elementwise.ElementwiseKernel(
         'double* out, double* start, const double* step',
         'const double s = step[0];'
@@ -158,7 +192,7 @@ def _compute_sigma(a, b, c, d, out=None, stream=None):
         operation='double sigma11 = cov_u2[i]   - cov_u_dp[i] *cov_u_dp[i] / cov_dp2[i];'
                   'double sigma12 = cov_u_up[i] - cov_u_dp[i] *cov_up_dp[i]/ cov_dp2[i];'
                   'double sigma22 = cov_up2[i]  - cov_up_dp[i]*cov_up_dp[i]/ cov_dp2[i];'
-                  'out[i] = sqrt((1./(nn*nn+nn))*(sigma11 * sigma22 - sigma12*sigma12))',
+                  'out[i] = sqrt((1./((nn-1)*(nn-1)))*(sigma11 * sigma22 - sigma12*sigma12))',
         name='_emitt_disp',
     )
     def _emittance_dispersion(
@@ -174,7 +208,7 @@ def _emittance_dispersion(
         arguments='double* out, double* cov_u2, double* cov_u_up, '
                   'double* cov_up2, double nn',
         operation=
-            'out[i] = sqrt((1./(nn*nn+nn)) * '
+            'out[i] = sqrt((1./((nn-1)*(nn-1))) * '
                      '(cov_u2[i] * cov_up2[i] - cov_u_up[i]*cov_u_up[i]))',
         name='_emitt_nodisp'
     )
@@ -362,23 +396,28 @@ def covariance_old(a, b):
     covariance = skcuda.misc.mean(x * y) * n / (n + 1)
     return covariance.get()
 
-def covariance(a,b, stream=None):
+def covariance(a, b, stream=None):
     '''Covariance (not covariance matrix)
     Args:
         a: pycuda.GPUArray
         b: pycuda.GPUArray
     '''
     n = len(a)
+    if n < 2:
+        return pycuda.gpuarray.zeros(1, dtype=np.float64,
+                                     allocator=gpu_utils.memory_pool.allocate)
     x = _empty_like(a)
     y = _empty_like(b)
-    mean_a = skcuda.misc.mean(a)
+    mean_a = mean(a, stream=stream)
     #x -= mean_a
     _sub_1dgpuarr(x, a, mean_a, stream=stream)
-    mean_b = skcuda.misc.mean(b)
+    mean_b = mean(b, stream=stream)
     #y -= mean_b
     _sub_1dgpuarr(y, b, mean_b, stream=stream)
-    covariance = skcuda.misc.mean(x * y) * (n / (n + 1))
-    return covariance
+    out = _multiply(x, y, stream=stream)
+    out = mean(out, stream=stream)
+    _mul_scalar(out=out, gpuarr=out, scalar=np.float64(n / (n - 1.)), stream=stream)
+    return out
 
 def mean(a, stream=None):
     '''Compute the mean of the gpuarray a
@@ -386,7 +425,6 @@ def mean(a, stream=None):
     the stream (because gpuarray.__div__ does not have a stream
     argument).
     '''
-    #out = pycuda.gpuarray.empty(1, dtype=np.float64, allocator=gpu_utils.memory_pool.allocate)
     n = len(a)
     out = pycuda.gpuarray.sum(a, stream=stream,
                               allocator=gpu_utils.memory_pool.allocate)
@@ -407,14 +445,14 @@ def std(a, stream=None):
     _inplace_pow(res, 0.5, stream=stream)
     return res
 
-def emittance_reference(u, up, dp):
+def emittance_reference(u, up, dp=None):
     '''
     Compute the emittance of GPU arrays. Reference implementation, slow
     but readable
     Args:
         u coordinate array
         up conjugate momentum array
-        dp longitudinal momentum variation
+        dp longitudinal momentum variation (can be None)
     '''
     cov_u2 = covariance(u, u)
     cov_up2 = covariance(up, up)
@@ -443,7 +481,7 @@ def emittance_reference(u, up, dp):
     return np.sqrt(sigma11.get() * sigma22.get() - sigma12 * sigma12)
 
 
-def emittance_(u, up, dp):
+def emittance_(u, up, dp=None):
     '''
     Compute the emittance of GPU arrays. Check the algorithm above for
     a more readable version, this one has been 'optimized', e.g. mean->sum
@@ -451,7 +489,7 @@ def emittance_(u, up, dp):
     Args:
         u coordinate array
         up conjugate momentum array
-        dp longitudinal momentum variation
+        dp longitudinal momentum variation (can be None)
     '''
     n = len(u)
     mean_u = skcuda.misc.mean(u)
@@ -478,10 +516,9 @@ def emittance_(u, up, dp):
             sigma11 -= cov_u_dp * cov_u_dp / cov_dp2
             sigma12 -= cov_u_dp * cov_up_dp / cov_dp2
             sigma22 -= cov_up_dp * cov_up_dp / cov_dp2
-    return pycuda.cumath.sqrt((1./(n*n+n))*(sigma11 * sigma22 - sigma12*sigma12))
-
+    return pycuda.cumath.sqrt(1./((n-1)*(n-1))*(sigma11 * sigma22 - sigma12*sigma12))
 
-def emittance(u, up, dp, stream=None):
+def emittance(u, up, dp=None, stream=None):
     '''
     Compute the emittance of GPU arrays. Check the algorithm above for
     a more readable version, this one has been 'optimized', e.g. mean->sum
@@ -530,6 +567,98 @@ def emittance(u, up, dp, stream=None):
     return out
 
 
+def dispersion(u, dp, stream=None):
+    '''Compute the statistical dispersion:
+    disp = <u*dp>/<dp**2>
+    Args:
+        u: coordinate array, typically x or y spatial coordinates
+        dp: longitudinal momentum offset array
+    '''
+    mean_dp2 = mean(_multiply(dp, dp, stream=stream), stream=stream)
+    if mean_dp2.get() > 0: # equiv to != 0 (dp^2 can never be <0)
+        mean_u_dp = mean(_multiply(u, dp, stream=stream), stream=stream)
+        return _divide(mean_u_dp, mean_dp2, stream=stream)
+    else:
+        return pycuda.gpuarray.zeros(1, dtype=float, allocator=gpu_utils.memory_pool.allocate)
+
+
+def get_alpha(u, up, dp=None, stream=None):
+    '''Compute the statistical Twiss alpha value.
+    If dp is None, the effective alpha is computed.
+    Args:
+        u: coordinate array, typically x or y spatial coordinates
+        up: momentum array, typically xp or yp momenta
+        dp: longitudinal momentum offset array
+    '''
+    cov_u_up = covariance(u, up, stream=None)
+    epsn = emittance(u, up, dp, stream=None)
+    include_dp = dp is not None
+    if include_dp:
+        cov_dp2 = covariance(dp, dp, stream=stream)
+        include_dp = cov_dp2.get() > 0
+    if include_dp:
+        cov_u_dp = covariance(u, dp, stream=stream)
+        cov_up_dp = covariance(up, dp, stream=stream)
+        tmp = _multiply(cov_u_dp, cov_up_dp, stream=stream)
+        offdiag = _divide(tmp, cov_dp2, stream=stream)
+        sigma12 = _subtract(offdiag, cov_u_up, stream=stream) # ! * (-1)
+    else:
+        _mul_scalar(out=cov_u_up, gpuarr=cov_u_up, scalar=np.float64(-1.), stream=stream)
+        sigma12 = cov_u_up
+
+    return _divide(sigma12, epsn, stream=stream)
+
+
+def get_beta(u, up, dp=None, stream=None):
+    '''Compute the statistical Twiss beta value.
+    If dp is None, the effective beta is computed.
+    Args:
+        u: coordinate array, typically x or y spatial coordinates
+        up: momentum array, typically xp or yp momenta
+        dp: longitudinal momentum offset array
+    '''
+    cov_u2 = covariance(u, u, stream=None)
+    epsn = emittance(u, up, dp, stream=None)
+    include_dp = dp is not None
+    if include_dp:
+        cov_dp2 = covariance(dp, dp, stream=stream)
+        include_dp = cov_dp2.get() > 0
+    if include_dp:
+        cov_u_dp = covariance(u, dp, stream=stream)
+        tmp = _multiply(cov_u_dp, cov_u_dp, stream=stream)
+        offdiag = _divide(tmp, cov_dp2, stream=stream)
+        sigma11 = _subtract(cov_u2, offdiag, stream=stream)
+    else:
+        sigma11 = cov_u2
+
+    return _divide(sigma11, epsn, stream=stream)
+
+
+def get_gamma(u, up, dp=None, stream=None):
+    '''Compute the statistical Twiss gamma value.
+    If dp is None, the effective gamma is computed.
+    Args:
+        u: coordinate array, typically x or y spatial coordinates
+        up: momentum array, typically xp or yp momenta
+        dp: longitudinal momentum offset array
+    '''
+    cov_up2 = covariance(up, up, stream=None)
+    epsn = emittance(u, up, dp, stream=None)
+    include_dp = dp is not None
+    if include_dp:
+        cov_dp2 = covariance(dp, dp, stream=stream)
+        include_dp = cov_dp2.get() > 0
+    if include_dp:
+        cov_up_dp = covariance(up, dp, stream=stream)
+        tmp = _multiply(cov_up_dp, cov_up_dp, stream=stream)
+        offdiag = _divide(tmp, cov_dp2, stream=stream)
+        sigma22 = _subtract(cov_up2, offdiag, stream=stream)
+    else:
+        sigma22 = cov_up2
+
+    return _divide(sigma22, epsn, stream=stream)
+
+
 def cumsum(array, dest=None):
     '''Return cumulative sum of 1-dimensional GPUArray data.
     Works for dtypes np.int32 and np.float64. Wrapper for thrust
@@ -560,15 +689,16 @@ def argsort(to_sort):
     permutation = pycuda.gpuarray.empty(
         to_sort.shape, dtype=np.int32,
         allocator=gpu_utils.memory_pool.allocate)
-    if dtype.itemsize == 8 and dtype.kind is 'f':
+    if dtype.itemsize == 8 and dtype.kind == 'f':
         thrust.get_sort_perm_double(to_sort.copy(), permutation)
-    elif dtype.itemsize == 4 and dtype.kind is 'i':
+    elif dtype.itemsize == 4 and dtype.kind == 'i':
         thrust.get_sort_perm_int(to_sort.copy(), permutation)
+    elif dtype.itemsize == 8 and dtype.kind == 'i':
+        thrust.get_sort_perm_long(to_sort.copy(), permutation)
     else:
-        print(to_sort.dtype)
-        print(to_sort.dtype.itemsize)
-        print(to_sort.dtype.kind)
-        raise TypeError('Currently only float64 and int32 types can be sorted')
+        raise TypeError(
+            'Currently only float64, int64 and int32 types can '
+            'be sorted -- I encountered ' + str(to_sort.dtype))
     return permutation
 
 def searchsortedleft(array, values, dest_array=None):
@@ -590,23 +720,24 @@ def searchsortedright(array, values, dest_array=None):
 def apply_permutation(array, permutation):
     '''
     Permute the entries in array according to the permutation array.
-    Return a new (permuted) array which is equal to array[permutation]
+    Return a new (permuted) array which is equal to array[permutation].
     Args:
-        array gpuarray to be permuted. Either float64 or int32
+        array gpuarray to be permuted. Must be float64, int64 or int32
         permutation permutation array: must be np.int32 (or int32), is asserted
     '''
-    assert(permutation.dtype.itemsize == 4 and permutation.dtype.kind is 'i')
+    assert(permutation.dtype.itemsize == 4 and permutation.dtype.kind == 'i')
     tmp = _empty_like(array)
     dtype = array.dtype
-    if dtype.itemsize == 8 and dtype.kind is 'f':
+    if dtype.itemsize == 8 and dtype.kind == 'f':
         thrust.apply_sort_perm_double(array, tmp, permutation)
-    elif dtype.itemsize == 4 and dtype.kind is 'i':
+    elif dtype.itemsize == 4 and dtype.kind == 'i':
         thrust.apply_sort_perm_int(array, tmp, permutation)
+    elif dtype.itemsize == 8 and dtype.kind == 'i':
+        thrust.apply_sort_perm_long(array, tmp, permutation)
     else:
-        print(array.dtype)
-        print(array.dtype.itemsize)
-        print(array.dtype.kind)
-        raise TypeError('Currently only float64 and int32 types can be sorted')
+        raise TypeError(
+            'Currently only float64, int64 and int32 types can '
+            'be sorted -- I encountered ' + str(array.dtype))
     return tmp
 
 def particles_within_cuts(sliceset):
@@ -778,12 +909,14 @@ def sorted_emittance_per_slice(sliceset, u, up, dp=None, stream=None):
         cov_up_dp= sorted_cov_per_slice(sliceset, up, dp, stream=streams[4])
         cov_dp2 = sorted_cov_per_slice(sliceset, dp, dp, stream=streams[5])
         for s in streams:
-            s.synchronize()
+            if s: # could be None
+                s.synchronize()
         if not cov_dp2.get().any():
             include_dp = False
     else:
         for s in streams[:3]:
-            s.synchronize()
+            if s: # could be None
+                s.synchronize()
 
     if include_dp:
         _emitt_disp(out, cov_u2, cov_u_up, cov_up2,
diff --git a/PyHEADTAIL/gpu/pypic.py b/PyHEADTAIL/gpu/pypic.py
index 0af75c53..ef2dca67 100644
--- a/PyHEADTAIL/gpu/pypic.py
+++ b/PyHEADTAIL/gpu/pypic.py
@@ -8,7 +8,6 @@ class depending on the current context (in pmath).
 '''
 
 from PyHEADTAIL.general import pmath as pm
-from pm import UnknownContextManagerError
 
 from PyPIC.GPU import pypic
 
@@ -17,12 +16,12 @@ def make_PyPIC(*args, **kwargs):
     Return PyPIC_GPU instance launched with args and kwargs if current
     context is on the GPU, otherwise return PyPIC instance.
     '''
-    if pm.device is 'CPU':
+    if pm.device == 'CPU':
         return pypic.PyPIC(*args, **kwargs)
-    elif pm.device is 'GPU':
+    elif pm.device == 'GPU':
         from pycuda.autoinit import context
         if 'context' not in kwargs:
             kwargs.update(context=context)
         return pypic.PyPIC_GPU(*args, **kwargs)
     else:
-        raise UnknownContextManagerError()
+        raise pm.UnknownContextManagerError()
diff --git a/PyHEADTAIL/gpu/slicing.py b/PyHEADTAIL/gpu/slicing.py
index bad257ac..7634ba1a 100644
--- a/PyHEADTAIL/gpu/slicing.py
+++ b/PyHEADTAIL/gpu/slicing.py
@@ -197,7 +197,7 @@ def lambda_prime_bins(self, sigma=1, smoothen_before=True,
         (i.e. the smoothened derivative of the n_macroparticles array
         times the macroparticle charge.)
         '''
-        if self.mode is 'uniform_charge':
+        if self.mode == 'uniform_charge':
             # self.warns('The line charge density derivative is zero up to ' +
             #            'numerical fluctuations w.r.t. bins because the ' +
             #            'charges have been distributed uniformly across ' +
diff --git a/PyHEADTAIL/gpu/thrust_code.cu b/PyHEADTAIL/gpu/thrust_code.cu
index b9c46721..7b9c6965 100644
--- a/PyHEADTAIL/gpu/thrust_code.cu
+++ b/PyHEADTAIL/gpu/thrust_code.cu
@@ -36,6 +36,14 @@ void thrust_get_sort_perm_double(double* input_ptr, int length, int* perm_ptr)
   thrust::sort_by_key(thrust_ptr, thrust_ptr + length, indices);
 }
 
+void thrust_get_sort_perm_long(long* input_ptr, int length, int* perm_ptr)
+{
+  thrust::device_ptr<long> thrust_ptr(input_ptr);
+  thrust::device_ptr<int> indices(perm_ptr);
+  thrust::sequence(indices, indices + length);
+  thrust::sort_by_key(thrust_ptr, thrust_ptr + length, indices);
+}
+
 void thrust_get_sort_perm_int(int* input_ptr, int length, int* perm_ptr)
 {
   thrust::device_ptr<int> thrust_ptr(input_ptr);
@@ -52,6 +60,14 @@ void thrust_apply_sort_perm_double(double* input_ptr, int length, double* output
   thrust::gather(indices, indices + length, thrust_input_ptr, thrust_output_ptr);
 }
 
+void thrust_apply_sort_perm_long(long* input_ptr, int length, long* output_ptr, int* perm_ptr)
+{
+  thrust::device_ptr<long> thrust_input_ptr(input_ptr);
+  thrust::device_ptr<long> thrust_output_ptr(output_ptr);
+  thrust::device_ptr<int> indices(perm_ptr);
+  thrust::gather(indices, indices + length, thrust_input_ptr, thrust_output_ptr);
+}
+
 void thrust_apply_sort_perm_int(int* input_ptr, int length, int* output_ptr, int* perm_ptr)
 {
   thrust::device_ptr<int> thrust_input_ptr(input_ptr);
diff --git a/PyHEADTAIL/gpu/thrust_interface.py b/PyHEADTAIL/gpu/thrust_interface.py
index 61803f37..ed4088fc 100644
--- a/PyHEADTAIL/gpu/thrust_interface.py
+++ b/PyHEADTAIL/gpu/thrust_interface.py
@@ -64,15 +64,36 @@ def apply_sort_perm_double(to_sort, out, permutation):
     '''
     Permutes the array to_sort using permutation and stores it into out
     Returns: nothing
-    All arguments are GPUArrays with a double datatype
+    All arguments are GPUArrays with a double datatype,
+    only permutation is int32.
     '''
     _libthrustwrap.thrust_apply_sort_perm_double(int(to_sort.gpudata),
                                                  np.int32(len(to_sort)),
                                                  int(out.gpudata),
                                                  int(permutation.gpudata))
 
+#### thrust_apply_sort_perm_long #############################################
+_libthrustwrap.thrust_apply_sort_perm_long.restype = None
+_libthrustwrap.thrust_apply_sort_perm_long.argtypes = [
+    ctypes.c_void_p, #in
+    ctypes.c_int, #length
+    ctypes.c_void_p, #out
+    ctypes.c_void_p #perm
+]
+def apply_sort_perm_long(to_sort, out, permutation):
+    '''
+    Permutes the array to_sort using permutation and stores it into out
+    Returns: nothing
+    All arguments are GPUArrays with an int64 datatype,
+    only permutation is int32.
+    '''
+    _libthrustwrap.thrust_apply_sort_perm_long(int(to_sort.gpudata),
+                                                 np.int32(len(to_sort)),
+                                                 int(out.gpudata),
+                                                 int(permutation.gpudata))
 
-#### thrust_apply_sort_perm_double #############################################
+
+#### thrust_apply_sort_perm_int #############################################
 _libthrustwrap.thrust_apply_sort_perm_int.restype = None
 _libthrustwrap.thrust_apply_sort_perm_int.argtypes = [
     ctypes.c_void_p, #in
@@ -84,7 +105,7 @@ def apply_sort_perm_int(to_sort, out, permutation):
     '''
     Permutes the array to_sort using permutation and stores it into out
     Returns: nothing
-    All arguments are GPUArrays with an int datatype
+    All arguments are GPUArrays with an int datatype.
     '''
     _libthrustwrap.thrust_apply_sort_perm_int(int(to_sort.gpudata),
                                               np.int32(len(to_sort)),
@@ -155,6 +176,23 @@ def get_sort_perm_int(input, out):
                                             int(out.gpudata))
 
 
+#### thrust_get_sort_perm_int ###############################################
+#void thrust_get_sort_perm_int(long* input_ptr, int length, int* perm_ptr)
+_libthrustwrap.thrust_get_sort_perm_long.restype = None
+_libthrustwrap.thrust_get_sort_perm_long.argtypes = [
+    ctypes.c_void_p,
+    ctypes.c_int,
+    ctypes.c_void_p
+]
+def get_sort_perm_long(input, out):
+    '''
+    Sort the GPUArray (int64) input and store the used permutation in out (int)
+    '''
+    _libthrustwrap.thrust_get_sort_perm_long(int(input.gpudata),
+                                             np.int32(len(input)),
+                                             int(out.gpudata))
+
+
 #### thrust_cumsum_double ###############################################
 #void thrust_cumsum_double(double* data_ptr, int length, double* sum_ptr)
 _libthrustwrap.thrust_cumsum_double.restype = None
diff --git a/PyHEADTAIL/impedances/wake_kicks.py b/PyHEADTAIL/impedances/wake_kicks.py
index 729761d1..a09789dc 100644
--- a/PyHEADTAIL/impedances/wake_kicks.py
+++ b/PyHEADTAIL/impedances/wake_kicks.py
@@ -157,8 +157,8 @@ def apply(self, bunch, slice_set_list, slice_set_age_list):
         constant_kick = self._accumulate_source_signal(
             bunch, times_list, slice_set_age_list, moments_list, betas_list)
 
-        p_idx = slice_set_list[0].particles_within_cuts
-        s_idx = pm.take(slice_set_list[0].slice_index_of_particle, p_idx)
+        p_idx = slice_set_list[0].particles_within_cuts_slice
+        s_idx = slice_set_list[0].slice_index_of_particle[p_idx]
         bunch.xp[p_idx] += pm.take(constant_kick, s_idx)
 
 
@@ -177,8 +177,8 @@ def apply(self, bunch, slice_set_list, slice_set_age_list):
         constant_kick = self._accumulate_source_signal(
             bunch, times_list, slice_set_age_list, moments_list, betas_list)
 
-        p_idx = slice_set_list[0].particles_within_cuts
-        s_idx = pm.take(slice_set_list[0].slice_index_of_particle, p_idx)
+        p_idx = slice_set_list[0].particles_within_cuts_slice
+        s_idx = slice_set_list[0].slice_index_of_particle[p_idx]
         bunch.yp[p_idx] += pm.take(constant_kick, s_idx)
 
 
@@ -197,8 +197,8 @@ def apply(self, bunch, slice_set_list, slice_set_age_list):
         constant_kick = self._accumulate_source_signal(
             bunch, times_list, slice_set_age_list, moments_list, betas_list)
 
-        p_idx = slice_set_list[0].particles_within_cuts
-        s_idx = pm.take(slice_set_list[0].slice_index_of_particle, p_idx)
+        p_idx = slice_set_list[0].particles_within_cuts_slice
+        s_idx = slice_set_list[0].slice_index_of_particle[p_idx]
         bunch.dp[p_idx] += pm.take(constant_kick, s_idx)
 
 
diff --git a/PyHEADTAIL/machines/synchrotron.py b/PyHEADTAIL/machines/synchrotron.py
index 7b606cef..caec180e 100644
--- a/PyHEADTAIL/machines/synchrotron.py
+++ b/PyHEADTAIL/machines/synchrotron.py
@@ -373,33 +373,39 @@ def generate_6D_Gaussian_bunch_matched(
         Requires self.longitudinal_mode == 'non-linear'
         for the bucket.
         """
-        assert self.longitudinal_mode == "non-linear"
-        epsx_geo = epsn_x / self.betagamma
-        epsy_geo = epsn_y / self.betagamma
+        if self.longitudinal_mode == 'linear':
+            assert(sigma_z is not None)
+            bunch = self.generate_6D_Gaussian_bunch(n_macroparticles, intensity,
+                    epsn_x, epsn_y, sigma_z)
+        elif self.longitudinal_mode == "non-linear":
+            epsx_geo = epsn_x / self.betagamma
+            epsy_geo = epsn_y / self.betagamma
 
-        injection_optics = self.transverse_map.get_injection_optics()
+            injection_optics = self.transverse_map.get_injection_optics()
 
-        bunch = generators.ParticleGenerator(
-            macroparticlenumber=n_macroparticles,
-            intensity=intensity,
-            charge=self.charge,
-            mass=self.mass,
-            circumference=self.circumference,
-            gamma=self.gamma,
-            distribution_x=generators.gaussian2D(epsx_geo),
-            alpha_x=injection_optics["alpha_x"],
-            beta_x=injection_optics["beta_x"],
-            D_x=injection_optics["D_x"],
-            distribution_y=generators.gaussian2D(epsy_geo),
-            alpha_y=injection_optics["alpha_y"],
-            beta_y=injection_optics["beta_y"],
-            D_y=injection_optics["D_y"],
-            distribution_z=generators.RF_bucket_distribution(
-                self.longitudinal_map.get_bucket(gamma=self.gamma),
-                sigma_z=sigma_z,
-                epsn_z=epsn_z,
-            ),
-        ).generate()
+            bunch = generators.ParticleGenerator(
+                macroparticlenumber=n_macroparticles,
+                intensity=intensity,
+                charge=self.charge,
+                mass=self.mass,
+                circumference=self.circumference,
+                gamma=self.gamma,
+                distribution_x=generators.gaussian2D(epsx_geo),
+                alpha_x=injection_optics["alpha_x"],
+                beta_x=injection_optics["beta_x"],
+                D_x=injection_optics["D_x"],
+                distribution_y=generators.gaussian2D(epsy_geo),
+                alpha_y=injection_optics["alpha_y"],
+                beta_y=injection_optics["beta_y"],
+                D_y=injection_optics["D_y"],
+                distribution_z=generators.RF_bucket_distribution(
+                    self.longitudinal_map.get_bucket(gamma=self.gamma),
+                    sigma_z=sigma_z,
+                    epsn_z=epsn_z,
+                ),
+            ).generate()
+        else:
+            raise ValueError('Unknown longitudinal mode!')
 
         return bunch
 
diff --git a/PyHEADTAIL/monitors/monitors.py b/PyHEADTAIL/monitors/monitors.py
index b703a860..2421b9c8 100644
--- a/PyHEADTAIL/monitors/monitors.py
+++ b/PyHEADTAIL/monitors/monitors.py
@@ -143,7 +143,7 @@ def _write_data_to_buffer(self, bunch):
             # (macroparticlenumber) of the bunch.
             write_pos = self.i_steps % self.buffer_size
             try:
-                if pm.device is 'is_.2slowerwiththis':#'GPU':
+                if pm.device == 'is_.2slowerwiththis':#'GPU':
                     #val_bf[stat]
                     st = next(gpu_utils.stream_pool)
                     val_buf[stats] = evaluate_stats(stream=st)
@@ -449,13 +449,14 @@ def _write_data_to_file(self, bunch, arrays_dict):
         all_quantities = {}
         for quant in self.quantities_to_store:
             quant_values = getattr(bunch, quant)
-            if pm.device is 'GPU':
+            if pm.device == 'GPU':
                 stream = next(gpu_utils.stream_pool)
                 quant_values = quant_values.get_async(stream=stream)
             all_quantities[quant] = quant_values
-        if pm.device is 'GPU':
-            for stream in gpu_utils.streams:
-                stream.synchronize()
+        if pm.device == 'GPU':
+            if gpu_utils.use_streams:
+                for stream in gpu_utils.streams:
+                    stream.synchronize()
 
         if arrays_dict is not None:
             all_quantities.update(arrays_dict)
@@ -573,12 +574,13 @@ def _write_data_to_buffer(self, bunch):
                      'yp': None, 'z': None, 'dp': None}
         for coord in ps_coords:
             ps_coords[coord] = getattr(bunch, coord)
-            if pm.device is 'GPU':
+            if pm.device == 'GPU':
                 stream = next(gpu_utils.stream_pool)
                 ps_coords[coord] = ps_coords[coord].get_async(stream=stream)
-        if pm.device is 'GPU':
-            for stream in gpu_utils.streams:
-                stream.synchronize()
+        if pm.device == 'GPU':
+            if gpu_utils.use_streams:
+                for stream in gpu_utils.streams:
+                    stream.synchronize()
 
         # TODO: calculate these cell stats on the GPU instead of the CPU!!!
         n_cl, x_cl, xp_cl, y_cl, yp_cl, z_cl, dp_cl = cp.calc_cell_stats(
diff --git a/PyHEADTAIL/particles/__init__.py b/PyHEADTAIL/particles/__init__.py
index e69de29b..57fc690e 100644
--- a/PyHEADTAIL/particles/__init__.py
+++ b/PyHEADTAIL/particles/__init__.py
@@ -0,0 +1,1 @@
+from .particles import Particles
diff --git a/PyHEADTAIL/particles/particles.py b/PyHEADTAIL/particles/particles.py
index fcf5e6b3..cf40368b 100644
--- a/PyHEADTAIL/particles/particles.py
+++ b/PyHEADTAIL/particles/particles.py
@@ -7,13 +7,10 @@
 import numpy as np
 from scipy.constants import c, e  # unit e needed for long. emittance
 
-from PyHEADTAIL.cobra_functions import stats as cp
 from PyHEADTAIL.general import pmath as pm
 from PyHEADTAIL.general.element import Printing
 
 arange = np.arange
-mean = np.mean
-std = cp.std
 
 
 class Particles(Printing):
@@ -198,7 +195,7 @@ def extract_slices(self, slicer, include_non_sliced='if_any', *args, **kwargs):
         # handle unsliced
         if include_non_sliced is not 'never':
             ix = slices.particles_outside_cuts
-            if len(ix)>0 or include_non_sliced is 'always':
+            if len(ix)>0 or include_non_sliced == 'always':
                 slice_object = Particles(macroparticlenumber=len(ix),
                     particlenumber_per_mp=self.particlenumber_per_mp, charge=self.charge,
                     mass=self.mass, circumference=self.circumference, gamma=self.gamma, coords_n_momenta_dict={})
@@ -272,14 +269,19 @@ def __add__(self, other):
         self_coords_n_momenta_dict = self.get_coords_n_momenta_dict()
         other_coords_n_momenta_dict = other.get_coords_n_momenta_dict()
 
-        result = Particles(macroparticlenumber=self.macroparticlenumber+other.macroparticlenumber,
-                    particlenumber_per_mp=self.particlenumber_per_mp, charge=self.charge,
-					mass=self.mass, circumference=self.circumference, gamma=self.gamma, coords_n_momenta_dict={})
+        result = Particles(
+            macroparticlenumber=self.macroparticlenumber + other.macroparticlenumber,
+            particlenumber_per_mp=self.particlenumber_per_mp, charge=self.charge,
+            mass=self.mass, circumference=self.circumference, gamma=self.gamma,
+            coords_n_momenta_dict={})
 
 
         for coord in list(self_coords_n_momenta_dict.keys()):
-            #setattr(result, coord, np.concatenate((self_coords_n_momenta_dict[coord].copy(), other_coords_n_momenta_dict[coord].copy())))
-            result.update({coord: np.concatenate((self_coords_n_momenta_dict[coord].copy(), other_coords_n_momenta_dict[coord].copy()))})
+            result.update(
+                {coord: np.concatenate(
+                    (self_coords_n_momenta_dict[coord].copy(),
+                     other_coords_n_momenta_dict[coord].copy()))}
+            )
 
         result.id = np.concatenate((self.id.copy(), other.id.copy()))
 
@@ -288,12 +290,13 @@ def __add__(self, other):
     def __radd__(self, other):
         if other==0:
             self_coords_n_momenta_dict = self.get_coords_n_momenta_dict()
-            result = Particles(macroparticlenumber=self.macroparticlenumber,
-                    particlenumber_per_mp=self.particlenumber_per_mp, charge=self.charge,
-                    mass=self.mass, circumference=self.circumference, gamma=self.gamma, coords_n_momenta_dict={})
+            result = Particles(
+                macroparticlenumber=self.macroparticlenumber,
+                particlenumber_per_mp=self.particlenumber_per_mp, charge=self.charge,
+                mass=self.mass, circumference=self.circumference, gamma=self.gamma,
+                coords_n_momenta_dict={})
 
             for coord in list(self_coords_n_momenta_dict.keys()):
-                #setattr(result, coord, np.concatenate((self_coords_n_momenta_dict[coord].copy(), other_coords_n_momenta_dict[coord].copy())))
                 result.update({coord: self_coords_n_momenta_dict[coord].copy()})
             result.id = self.id.copy()
         else:
@@ -306,50 +309,39 @@ def __radd__(self, other):
     # kwargs are for passing stream=... in the gpu case
 
     def mean_x(self, **kwargs):
-        #return np.float(pm.mean(self.x))
         return pm.mean(self.x, **kwargs)
 
     def mean_xp(self, **kwargs):
-        #return np.float(pm.mean(self.xp))
         return pm.mean(self.xp, **kwargs)
 
     def mean_y(self, **kwargs):
-        #return np.float(pm.mean(self.y))
         return pm.mean(self.y, **kwargs)
 
     def mean_yp(self, **kwargs):
-        #return np.float(pm.mean(self.yp))
         return pm.mean(self.yp, **kwargs)
 
     def mean_z(self, **kwargs):
-        #return np.float(pm.mean(self.z))
         return pm.mean(self.z, **kwargs)
 
     def mean_dp(self, **kwargs):
-        #return np.float(pm.mean(self.dp))
         return pm.mean(self.dp, **kwargs)
 
     def sigma_x(self, **kwargs):
         return pm.std(self.x, **kwargs)
 
     def sigma_y(self, **kwargs):
-        #return np.float(pm.std(self.y))
         return pm.std(self.y, **kwargs)
 
     def sigma_z(self, **kwargs):
-        #return np.float(pm.std(self.z))
         return pm.std(self.z, **kwargs)
 
     def sigma_xp(self, **kwargs):
-        #return np.float(pm.std(self.xp))
         return pm.std(self.xp, **kwargs)
 
     def sigma_yp(self, **kwargs):
-        #return np.float(pm.std(self.yp))
         return pm.std(self.yp, **kwargs)
 
     def sigma_dp(self, **kwargs):
-        #return np.float(pm.std(self.dp))
         return pm.std(self.dp, **kwargs)
 
     def effective_normalized_emittance_x(self, **kwargs):
@@ -374,25 +366,25 @@ def epsn_z(self, **kwargs):
         return self.effective_normalized_emittance_z(**kwargs)
 
     def dispersion_x(self):
-        return cp.dispersion(self.x, self.dp)
+        return pm.dispersion(self.x, self.dp)
 
     def dispersion_y(self):
-        return cp.dispersion(self.y, self.dp)
+        return pm.dispersion(self.y, self.dp)
 
     def alpha_Twiss_x(self):
-        return cp.get_alpha(self.x, self.xp, getattr(self, 'dp', None))
+        return pm.get_alpha(self.x, self.xp, getattr(self, 'dp', None))
 
     def alpha_Twiss_y(self):
-        return cp.get_alpha(self.y, self.yp, getattr(self, 'dp', None))
+        return pm.get_alpha(self.y, self.yp, getattr(self, 'dp', None))
 
     def beta_Twiss_x(self):
-        return cp.get_beta(self.x, self.xp, getattr(self, 'dp', None))
+        return pm.get_beta(self.x, self.xp, getattr(self, 'dp', None))
 
     def beta_Twiss_y(self):
-        return cp.get_beta(self.y, self.yp, getattr(self, 'dp', None))
+        return pm.get_beta(self.y, self.yp, getattr(self, 'dp', None))
 
     def gamma_Twiss_x(self):
-        return cp.get_gamma(self.x, self.xp, getattr(self, 'dp', None))
+        return pm.get_gamma(self.x, self.xp, getattr(self, 'dp', None))
 
     def gamma_Twiss_y(self):
-        return cp.get_gamma(self.y, self.yp, getattr(self, 'dp', None))
+        return pm.get_gamma(self.y, self.yp, getattr(self, 'dp', None))
diff --git a/PyHEADTAIL/particles/slicing.py b/PyHEADTAIL/particles/slicing.py
index d36f131f..b779438e 100644
--- a/PyHEADTAIL/particles/slicing.py
+++ b/PyHEADTAIL/particles/slicing.py
@@ -244,7 +244,7 @@ def lambda_prime_bins(self, sigma=None, smoothen_before=True,
         (i.e. the smoothened derivative of the n_macroparticles array
         times the macroparticle charge.)
         '''
-        if self.mode is 'uniform_charge':
+        if self.mode == 'uniform_charge':
             # self.warns('The line charge density derivative is zero up to ' +
             #            'numerical fluctuations w.r.t. bins because the ' +
             #            'charges have been distributed uniformly across ' +
@@ -461,7 +461,7 @@ def add_statistics(self, sliceset, beam, statistics):
         for stat in statistics:
             if not hasattr(sliceset, stat):
                 stat_caller = getattr(self, '_' + stat)
-                if pm.device is 'GPU':
+                if pm.device == 'GPU':
                     st = next(gpu_utils.stream_pool)
                     values = stat_caller(sliceset, beam,
                                          stream=next(gpu_utils.stream_pool))
diff --git a/PyHEADTAIL/spacecharge/spacecharge.py b/PyHEADTAIL/spacecharge/spacecharge.py
index 7a68e618..1ef2a9db 100644
--- a/PyHEADTAIL/spacecharge/spacecharge.py
+++ b/PyHEADTAIL/spacecharge/spacecharge.py
@@ -68,15 +68,15 @@ def __init__(self, slicer, pipe_radius, length, n_slice_sigma=3,
         self.n_slice_sigma = n_slice_sigma
         self._gfactor = self._gfactor0
 
-    @clean_slices
     def track(self, beam):
         '''Add the longitudinal space charge contribution to the beam's
         dp kick.
         '''
         slices = beam.get_slices(self.slicer)
         lambda_prime = slices.lambda_prime_bins(sigma=self.n_slice_sigma)
+        lambda_prime_z = lambda_prime / slices.slice_widths[0]
         slice_kicks = (self._prefactor(slices) * self._gfactor(beam) *
-                       lambda_prime) * (self.length / (beam.beta * c))
+                       lambda_prime_z) * (self.length / (beam.beta * c))
 
         kicks = slices.convert_to_particles(slice_kicks)
         beam.dp -= kicks
@@ -87,7 +87,9 @@ def _prefactor(beam):
                 (4.*np.pi*epsilon_0 * beam.gamma**2 * beam.p0))
 
     def _gfactor0(self, beam):
-        '''Geometry factor for circular vacuum pipe.'''
+        '''Geometry factor for Gaussian beam on-axis
+        in symmetric vacuum pipe.
+        '''
         # transverse beam size:
         # (sigx+sigz)/2 * sqrt(2) <<< formula is for uniform distribution,
         # corresponding Gaussian sigmae are sqrt(2) larger
@@ -127,6 +129,33 @@ def potential(z):
         return potential
 
 
+class LongSpaceChargeRectPipe(LongSpaceCharge):
+    '''Longitudinal space charge with a gfactor computed for
+    a rectangular beam pipe.
+
+    See K.Y. Ng, Part. Accel. 16, 63 (1984),
+    L. Wang and Y. Li, Phys. Rev. ST Accel Beams 18, 024201 (2015)
+    '''
+    def __init__(self, slicer, pipe_width, pipe_height, length,
+                 n_slice_sigma=3, *args, **kwargs):
+        '''Assumes a rectangular beam pipe.
+        Arguments:
+        - pipe_width is the the width of the vacuum pipe in metres.
+        - pipe_height is the the height of the vacuum pipe in metres.
+        - length is an s interval (in metres) along which the SC force
+        is integrated. Usually you want to set this to circumference
+        in conjunction with the LongitudinalOneTurnMap RFSystems.
+        - n_slice_sigma indicates the number of slices taken as a
+        sigma for the Gaussian kernel that smoothens the line charge
+        density derivative (see SliceSet.lambda_prime_bins for more
+        info).
+        '''
+        pipe_radius = 2 * pipe_height / np.pi * np.tanh(
+            np.pi * pipe_width / (2 * pipe_height))
+        super().__init__(slicer, abs(pipe_radius), length, n_slice_sigma,
+                         *args, **kwargs)
+
+
 class TransverseGaussianSpaceCharge(Element):
     '''Contains transverse space charge for a Gaussian configuration.
     Applies the Bassetti-Erskine electric field expression slice-wise
diff --git a/PyHEADTAIL/trackers/transverse_tracking.py b/PyHEADTAIL/trackers/transverse_tracking.py
index 23363119..4d58e468 100644
--- a/PyHEADTAIL/trackers/transverse_tracking.py
+++ b/PyHEADTAIL/trackers/transverse_tracking.py
@@ -267,7 +267,7 @@ def __init__(self, s, alpha_x, beta_x, D_x, alpha_y, beta_y, D_y,
         self.segment_maps = []
         self._generate_segment_maps()
 
-        if self.D_x.any() or self.D_y.any():
+        if any(self.D_x) or any(self.D_y):
             self.prints('Non-zero dispersion in tracking: '
                         'ensure the beam has been generated '
                         'being matched to the correct dispersion!')
@@ -328,18 +328,27 @@ def _generate_segment_maps(self):
 
             self.segment_maps.append(transverse_segment_map)
 
-    def get_injection_optics(self):
+    def get_injection_optics(self, for_particle_generation=False):
         """Return a dict with the transverse TWISS parameters
         alpha_x, beta_x, D_x, alpha_y, beta_y, D_y from the
         beginning of the first segment (injection point).
+
+        The argument for_particle_generation == True names
+        the dispersion "dispersion_x" and not "D_x" as usual,
+        as e.g. required by the function
+        PyHEADTAIL.particles.generators.generate_Gaussian6DTwiss.
         """
+        if for_particle_generation:
+            disp_name = 'dispersion'
+        else:
+            disp_name = 'D'
         return {
             'alpha_x': self.alpha_x[0],
             'beta_x': self.beta_x[0],
-            'D_x': self.D_x[0],
+            disp_name + '_x': self.D_x[0],
             'alpha_y': self.alpha_y[0],
             'beta_y': self.beta_y[0],
-            'D_y': self.D_y[0]
+            disp_name + '_y': self.D_y[0]
         }
 
     def __len__(self):
diff --git a/README.rst b/README.rst
index 3c5e5160..0c32e4c4 100644
--- a/README.rst
+++ b/README.rst
@@ -1,19 +1,11 @@
-.. image:: https://github.com/PyCOMPLETE/PyHEADTAIL/workflows/manual/badge.svg
-   :target: https://github.com/PyCOMPLETE/PyHEADTAIL/actions
-
-.. image:: https://github.com/PyCOMPLETE/PyHEADTAIL/workflows/build/badge.svg
-   :target: https://github.com/PyCOMPLETE/PyHEADTAIL/actions
-
-.. image:: https://github.com/PyCOMPLETE/PyHEADTAIL/workflows/tests/badge.svg
-   :target: https://github.com/PyCOMPLETE/PyHEADTAIL/actions
    
 PyHEADTAIL
 ==========
 
-CERN PyHEADTAIL numerical n-body simulation code
-for simulating macro-particle beam dynamics with collective effects.
+CERN PyHEADTAIL macro-particle code
+for simulating beam dynamics in particle accelerators with collective effects.
 
-PyHEADTAIL is written in C and Python.
+PyHEADTAIL is written in Python with some C extensions, compiled with Cython.
 Currently, PyHEADTAIL is compatible with Python v3.6 or later.
 
 Installation for Users
@@ -66,7 +58,5 @@ And there you go, start using PyHEADTAIL!
 
     In [1]: import PyHEADTAIL
 
-    PyHEADTAIL v1.14.0
-
 For a single installation of PyHEADTAIL we recommended to add
 the PyHEADTAIL path to your PYTHONPATH.
diff --git a/docs/.buildinfo b/docs/.buildinfo
deleted file mode 100644
index 95c9bec9..00000000
--- a/docs/.buildinfo
+++ /dev/null
@@ -1,4 +0,0 @@
-# Sphinx build info version 1
-# This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: 6229eace5ad93a54d86171535695c2f4
-tags: 645f666f9bcd5a90fca523b33c5a78b7
diff --git a/docs/.nojekyll b/docs/.nojekyll
deleted file mode 100644
index e69de29b..00000000
diff --git a/docs/_config.yml b/docs/_config.yml
deleted file mode 100644
index b8497135..00000000
--- a/docs/_config.yml
+++ /dev/null
@@ -1,1 +0,0 @@
-theme: jekyll-theme-leap-day
\ No newline at end of file
diff --git a/docs/_sources/PyHEADTAIL.aperture.rst.txt b/docs/_sources/PyHEADTAIL.aperture.rst.txt
deleted file mode 100644
index ee4d18bc..00000000
--- a/docs/_sources/PyHEADTAIL.aperture.rst.txt
+++ /dev/null
@@ -1,32 +0,0 @@
-PyHEADTAIL.aperture package
-===========================
-
-.. automodule:: PyHEADTAIL.aperture
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.aperture.aperture module
------------------------------------
-
-.. automodule:: PyHEADTAIL.aperture.aperture
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.aperture.aperture\_cython module
--------------------------------------------
-
-.. automodule:: PyHEADTAIL.aperture.aperture_cython
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
diff --git a/docs/_sources/PyHEADTAIL.cobra_functions.rst.txt b/docs/_sources/PyHEADTAIL.cobra_functions.rst.txt
deleted file mode 100644
index 6162351e..00000000
--- a/docs/_sources/PyHEADTAIL.cobra_functions.rst.txt
+++ /dev/null
@@ -1,65 +0,0 @@
-PyHEADTAIL.cobra\_functions package
-===================================
-
-.. automodule:: PyHEADTAIL.cobra_functions
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.cobra\_functions.c\_sin\_cos module
-----------------------------------------------
-
-.. automodule:: PyHEADTAIL.cobra_functions.c_sin_cos
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.cobra\_functions.curve\_tools module
------------------------------------------------
-
-.. automodule:: PyHEADTAIL.cobra_functions.curve_tools
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.cobra\_functions.interp\_sin\_cos module
----------------------------------------------------
-
-.. automodule:: PyHEADTAIL.cobra_functions.interp_sin_cos
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.cobra\_functions.pdf\_integrators\_2d module
--------------------------------------------------------
-
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.cobra\_functions.stats module
-----------------------------------------
-
-.. automodule:: PyHEADTAIL.cobra_functions.stats
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
diff --git a/docs/_sources/PyHEADTAIL.feedback.rst.txt b/docs/_sources/PyHEADTAIL.feedback.rst.txt
deleted file mode 100644
index 08e8726d..00000000
--- a/docs/_sources/PyHEADTAIL.feedback.rst.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-PyHEADTAIL.feedback package
-===========================
-
-.. automodule:: PyHEADTAIL.feedback
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.feedback.transverse\_damper module
----------------------------------------------
-
-.. automodule:: PyHEADTAIL.feedback.transverse_damper
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.feedback.widebandfeedback module
--------------------------------------------
-
-.. automodule:: PyHEADTAIL.feedback.widebandfeedback
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
diff --git a/docs/_sources/PyHEADTAIL.field_maps.rst.txt b/docs/_sources/PyHEADTAIL.field_maps.rst.txt
deleted file mode 100644
index d1c5d10e..00000000
--- a/docs/_sources/PyHEADTAIL.field_maps.rst.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-PyHEADTAIL.field\_maps package
-==============================
-
-.. automodule:: PyHEADTAIL.field_maps
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.field\_maps.Transverse\_Efield\_map module
------------------------------------------------------
-
-.. automodule:: PyHEADTAIL.field_maps.Transverse_Efield_map
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.field\_maps.field\_map module
-----------------------------------------
-
-.. automodule:: PyHEADTAIL.field_maps.field_map
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
diff --git a/docs/_sources/PyHEADTAIL.general.rst.txt b/docs/_sources/PyHEADTAIL.general.rst.txt
deleted file mode 100644
index 11fefdcd..00000000
--- a/docs/_sources/PyHEADTAIL.general.rst.txt
+++ /dev/null
@@ -1,77 +0,0 @@
-PyHEADTAIL.general package
-==========================
-
-.. automodule:: PyHEADTAIL.general
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.general.contextmanager module
-----------------------------------------
-
-.. automodule:: PyHEADTAIL.general.contextmanager
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.general.decorators module
-------------------------------------
-
-.. automodule:: PyHEADTAIL.general.decorators
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.general.element module
----------------------------------
-
-.. automodule:: PyHEADTAIL.general.element
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.general.pmath module
--------------------------------
-
-.. automodule:: PyHEADTAIL.general.pmath
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.general.printers module
-----------------------------------
-
-.. automodule:: PyHEADTAIL.general.printers
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.general.utils module
--------------------------------
-
-.. automodule:: PyHEADTAIL.general.utils
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
diff --git a/docs/_sources/PyHEADTAIL.gpu.rst.txt b/docs/_sources/PyHEADTAIL.gpu.rst.txt
deleted file mode 100644
index 20356759..00000000
--- a/docs/_sources/PyHEADTAIL.gpu.rst.txt
+++ /dev/null
@@ -1,91 +0,0 @@
-PyHEADTAIL.gpu package
-======================
-
-.. automodule:: PyHEADTAIL.gpu
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.gpu.gpu\_utils module
---------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.gpu_utils
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.gpu.gpu\_wrap module
--------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.gpu_wrap
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.gpu.oldinit module
------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.oldinit
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.gpu.particles module
--------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.particles
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.gpu.pypic module
----------------------------
-
-.. automodule:: PyHEADTAIL.gpu.pypic
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.gpu.slicing module
------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.slicing
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.gpu.thrust\_interface module
----------------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.thrust_interface
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance::
-
-PyHEADTAIL.gpu.wrapper module
------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.wrapper
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docs/_sources/PyHEADTAIL.impedances.rst.txt b/docs/_sources/PyHEADTAIL.impedances.rst.txt
deleted file mode 100644
index fe36a010..00000000
--- a/docs/_sources/PyHEADTAIL.impedances.rst.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-PyHEADTAIL.impedances package
-=============================
-
-.. automodule:: PyHEADTAIL.impedances
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.impedances.wake\_kicks module
-----------------------------------------
-
-.. automodule:: PyHEADTAIL.impedances.wake_kicks
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-PyHEADTAIL.impedances.wakes module
-----------------------------------
-
-.. automodule:: PyHEADTAIL.impedances.wakes
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
diff --git a/docs/_sources/PyHEADTAIL.machines.rst.txt b/docs/_sources/PyHEADTAIL.machines.rst.txt
deleted file mode 100644
index 0dcadb95..00000000
--- a/docs/_sources/PyHEADTAIL.machines.rst.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-PyHEADTAIL.machines package
-===========================
-
-.. automodule:: PyHEADTAIL.machines
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.machines.synchrotron module
---------------------------------------
-
-.. automodule:: PyHEADTAIL.machines.synchrotron
-   :members:
-   :private-members: __init__
-   :special-members: __init__
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docs/_sources/PyHEADTAIL.monitors.rst.txt b/docs/_sources/PyHEADTAIL.monitors.rst.txt
deleted file mode 100644
index d9e07075..00000000
--- a/docs/_sources/PyHEADTAIL.monitors.rst.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-PyHEADTAIL.monitors package
-===========================
-
-.. automodule:: PyHEADTAIL.monitors
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.monitors.monitors module
------------------------------------
-
-.. automodule:: PyHEADTAIL.monitors.monitors
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docs/_sources/PyHEADTAIL.multipoles.rst.txt b/docs/_sources/PyHEADTAIL.multipoles.rst.txt
deleted file mode 100644
index a4bc81a5..00000000
--- a/docs/_sources/PyHEADTAIL.multipoles.rst.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-PyHEADTAIL.multipoles package
-=============================
-
-.. automodule:: PyHEADTAIL.multipoles
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.multipoles.multipoles module
----------------------------------------
-
-.. automodule:: PyHEADTAIL.multipoles.multipoles
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docs/_sources/PyHEADTAIL.particles.rst.txt b/docs/_sources/PyHEADTAIL.particles.rst.txt
deleted file mode 100644
index 62f2eb04..00000000
--- a/docs/_sources/PyHEADTAIL.particles.rst.txt
+++ /dev/null
@@ -1,51 +0,0 @@
-PyHEADTAIL.particles package
-============================
-
-.. automodule:: PyHEADTAIL.particles
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.particles.generators module
---------------------------------------
-
-.. automodule:: PyHEADTAIL.particles.generators
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.particles.particles module
--------------------------------------
-
-.. automodule:: PyHEADTAIL.particles.particles
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.particles.rfbucket\_matching module
-----------------------------------------------
-
-.. automodule:: PyHEADTAIL.particles.rfbucket_matching
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.particles.slicing module
------------------------------------
-
-.. automodule:: PyHEADTAIL.particles.slicing
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docs/_sources/PyHEADTAIL.radiation.rst.txt b/docs/_sources/PyHEADTAIL.radiation.rst.txt
deleted file mode 100644
index 9d3b0544..00000000
--- a/docs/_sources/PyHEADTAIL.radiation.rst.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-PyHEADTAIL.radiation package
-============================
-
-.. automodule:: PyHEADTAIL.radiation
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.radiation.radiation module
--------------------------------------
-
-.. automodule:: PyHEADTAIL.radiation.radiation
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docs/_sources/PyHEADTAIL.rfq.rst.txt b/docs/_sources/PyHEADTAIL.rfq.rst.txt
deleted file mode 100644
index abba4686..00000000
--- a/docs/_sources/PyHEADTAIL.rfq.rst.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-PyHEADTAIL.rfq package
-======================
-
-.. automodule:: PyHEADTAIL.rfq
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.rfq.rfq module
--------------------------
-
-.. automodule:: PyHEADTAIL.rfq.rfq
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docs/_sources/PyHEADTAIL.rst.txt b/docs/_sources/PyHEADTAIL.rst.txt
deleted file mode 100644
index 77fdc9fd..00000000
--- a/docs/_sources/PyHEADTAIL.rst.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-PyHEADTAIL package
-==================
-
-.. automodule:: PyHEADTAIL
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Subpackages
------------
-
-.. toctree::
-
-   PyHEADTAIL.aperture
-   PyHEADTAIL.cobra_functions
-   PyHEADTAIL.feedback
-   PyHEADTAIL.field_maps
-   PyHEADTAIL.general
-   PyHEADTAIL.gpu
-   PyHEADTAIL.impedances
-   PyHEADTAIL.machines
-   PyHEADTAIL.monitors
-   PyHEADTAIL.multipoles
-   PyHEADTAIL.particles
-   PyHEADTAIL.radiation
-   PyHEADTAIL.rfq
-   PyHEADTAIL.spacecharge
-   PyHEADTAIL.trackers
diff --git a/docs/_sources/PyHEADTAIL.spacecharge.rst.txt b/docs/_sources/PyHEADTAIL.spacecharge.rst.txt
deleted file mode 100644
index 4f7eac60..00000000
--- a/docs/_sources/PyHEADTAIL.spacecharge.rst.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-PyHEADTAIL.spacecharge package
-==============================
-
-.. automodule:: PyHEADTAIL.spacecharge
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.spacecharge.pypic\_factory module
---------------------------------------------
-
-.. automodule:: PyHEADTAIL.spacecharge.pypic_factory
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.spacecharge.pypic\_spacecharge module
-------------------------------------------------
-
-.. automodule:: PyHEADTAIL.spacecharge.pypic_spacecharge
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.spacecharge.spacecharge module
------------------------------------------
-
-.. automodule:: PyHEADTAIL.spacecharge.spacecharge
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.spacecharge.transverse\_spacecharge module
------------------------------------------------------
-
-.. automodule:: PyHEADTAIL.spacecharge.transverse_spacecharge
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
diff --git a/docs/_sources/PyHEADTAIL.trackers.rst.txt b/docs/_sources/PyHEADTAIL.trackers.rst.txt
deleted file mode 100644
index 8bc01240..00000000
--- a/docs/_sources/PyHEADTAIL.trackers.rst.txt
+++ /dev/null
@@ -1,90 +0,0 @@
-PyHEADTAIL.trackers package
-===========================
-
-.. automodule:: PyHEADTAIL.trackers
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.trackers.detuners module
------------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.detuners
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.trackers.libTPSA module
-----------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.libTPSA
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.trackers.libintegrators module
------------------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.libintegrators
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.trackers.longitudinal\_tracking module
--------------------------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.longitudinal_tracking
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.trackers.rf\_bucket module
--------------------------------------
-
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.trackers.simple\_long\_tracking module
--------------------------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.simple_long_tracking
-   :members:
-   :private-members:
-   :special-members:
-..   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.trackers.transverse\_tracking module
------------------------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.transverse_tracking
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.trackers.wrapper module
-----------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.wrapper
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
diff --git a/docs/_sources/index.rst.txt b/docs/_sources/index.rst.txt
deleted file mode 100644
index fd3c6203..00000000
--- a/docs/_sources/index.rst.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-.. PyHEADTAIL documentation master file, created by
-   sphinx-quickstart on Thu Dec  5 15:11:20 2019.
-   You can adapt this file completely to your liking, but it should at least
-   contain the root `toctree` directive.
-
-Welcome to PyHEADTAIL's API description!
-======================================
-
-.. toctree::
-   :maxdepth: 3 
-   :caption: Contents:
-
-   PyHEADTAIL
-
-
-Indices and tables
-==================
-
-* :ref:`genindex`
-* :ref:`modindex`
-* :ref:`search`
diff --git a/docs/_static/basic.css b/docs/_static/basic.css
deleted file mode 100644
index b04360d6..00000000
--- a/docs/_static/basic.css
+++ /dev/null
@@ -1,768 +0,0 @@
-/*
- * basic.css
- * ~~~~~~~~~
- *
- * Sphinx stylesheet -- basic theme.
- *
- * :copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
- * :license: BSD, see LICENSE for details.
- *
- */
-
-/* -- main layout ----------------------------------------------------------- */
-
-div.clearer {
-    clear: both;
-}
-
-/* -- relbar ---------------------------------------------------------------- */
-
-div.related {
-    width: 100%;
-    font-size: 90%;
-}
-
-div.related h3 {
-    display: none;
-}
-
-div.related ul {
-    margin: 0;
-    padding: 0 0 0 10px;
-    list-style: none;
-}
-
-div.related li {
-    display: inline;
-}
-
-div.related li.right {
-    float: right;
-    margin-right: 5px;
-}
-
-/* -- sidebar --------------------------------------------------------------- */
-
-div.sphinxsidebarwrapper {
-    padding: 10px 5px 0 10px;
-}
-
-div.sphinxsidebar {
-    float: left;
-    width: 230px;
-    margin-left: -100%;
-    font-size: 90%;
-    word-wrap: break-word;
-    overflow-wrap : break-word;
-}
-
-div.sphinxsidebar ul {
-    list-style: none;
-}
-
-div.sphinxsidebar ul ul,
-div.sphinxsidebar ul.want-points {
-    margin-left: 20px;
-    list-style: square;
-}
-
-div.sphinxsidebar ul ul {
-    margin-top: 0;
-    margin-bottom: 0;
-}
-
-div.sphinxsidebar form {
-    margin-top: 10px;
-}
-
-div.sphinxsidebar input {
-    border: 1px solid #98dbcc;
-    font-family: sans-serif;
-    font-size: 1em;
-}
-
-div.sphinxsidebar #searchbox form.search {
-    overflow: hidden;
-}
-
-div.sphinxsidebar #searchbox input[type="text"] {
-    float: left;
-    width: 80%;
-    padding: 0.25em;
-    box-sizing: border-box;
-}
-
-div.sphinxsidebar #searchbox input[type="submit"] {
-    float: left;
-    width: 20%;
-    border-left: none;
-    padding: 0.25em;
-    box-sizing: border-box;
-}
-
-
-img {
-    border: 0;
-    max-width: 100%;
-}
-
-/* -- search page ----------------------------------------------------------- */
-
-ul.search {
-    margin: 10px 0 0 20px;
-    padding: 0;
-}
-
-ul.search li {
-    padding: 5px 0 5px 20px;
-    background-image: url(file.png);
-    background-repeat: no-repeat;
-    background-position: 0 7px;
-}
-
-ul.search li a {
-    font-weight: bold;
-}
-
-ul.search li div.context {
-    color: #888;
-    margin: 2px 0 0 30px;
-    text-align: left;
-}
-
-ul.keywordmatches li.goodmatch a {
-    font-weight: bold;
-}
-
-/* -- index page ------------------------------------------------------------ */
-
-table.contentstable {
-    width: 90%;
-    margin-left: auto;
-    margin-right: auto;
-}
-
-table.contentstable p.biglink {
-    line-height: 150%;
-}
-
-a.biglink {
-    font-size: 1.3em;
-}
-
-span.linkdescr {
-    font-style: italic;
-    padding-top: 5px;
-    font-size: 90%;
-}
-
-/* -- general index --------------------------------------------------------- */
-
-table.indextable {
-    width: 100%;
-}
-
-table.indextable td {
-    text-align: left;
-    vertical-align: top;
-}
-
-table.indextable ul {
-    margin-top: 0;
-    margin-bottom: 0;
-    list-style-type: none;
-}
-
-table.indextable > tbody > tr > td > ul {
-    padding-left: 0em;
-}
-
-table.indextable tr.pcap {
-    height: 10px;
-}
-
-table.indextable tr.cap {
-    margin-top: 10px;
-    background-color: #f2f2f2;
-}
-
-img.toggler {
-    margin-right: 3px;
-    margin-top: 3px;
-    cursor: pointer;
-}
-
-div.modindex-jumpbox {
-    border-top: 1px solid #ddd;
-    border-bottom: 1px solid #ddd;
-    margin: 1em 0 1em 0;
-    padding: 0.4em;
-}
-
-div.genindex-jumpbox {
-    border-top: 1px solid #ddd;
-    border-bottom: 1px solid #ddd;
-    margin: 1em 0 1em 0;
-    padding: 0.4em;
-}
-
-/* -- domain module index --------------------------------------------------- */
-
-table.modindextable td {
-    padding: 2px;
-    border-collapse: collapse;
-}
-
-/* -- general body styles --------------------------------------------------- */
-
-div.body {
-    min-width: 450px;
-    max-width: 800px;
-}
-
-div.body p, div.body dd, div.body li, div.body blockquote {
-    -moz-hyphens: auto;
-    -ms-hyphens: auto;
-    -webkit-hyphens: auto;
-    hyphens: auto;
-}
-
-a.headerlink {
-    visibility: hidden;
-}
-
-a.brackets:before,
-span.brackets > a:before{
-    content: "[";
-}
-
-a.brackets:after,
-span.brackets > a:after {
-    content: "]";
-}
-
-h1:hover > a.headerlink,
-h2:hover > a.headerlink,
-h3:hover > a.headerlink,
-h4:hover > a.headerlink,
-h5:hover > a.headerlink,
-h6:hover > a.headerlink,
-dt:hover > a.headerlink,
-caption:hover > a.headerlink,
-p.caption:hover > a.headerlink,
-div.code-block-caption:hover > a.headerlink {
-    visibility: visible;
-}
-
-div.body p.caption {
-    text-align: inherit;
-}
-
-div.body td {
-    text-align: left;
-}
-
-.first {
-    margin-top: 0 !important;
-}
-
-p.rubric {
-    margin-top: 30px;
-    font-weight: bold;
-}
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-    position: relative;
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-/* -- printout stylesheet --------------------------------------------------- */
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-    div.document,
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-    div.sphinxsidebar,
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\ No newline at end of file
diff --git a/docs/_static/doctools.js b/docs/_static/doctools.js
deleted file mode 100644
index b33f87fc..00000000
--- a/docs/_static/doctools.js
+++ /dev/null
@@ -1,314 +0,0 @@
-/*
- * doctools.js
- * ~~~~~~~~~~~
- *
- * Sphinx JavaScript utilities for all documentation.
- *
- * :copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
- * :license: BSD, see LICENSE for details.
- *
- */
-
-/**
- * select a different prefix for underscore
- */
-$u = _.noConflict();
-
-/**
- * make the code below compatible with browsers without
- * an installed firebug like debugger
-if (!window.console || !console.firebug) {
-  var names = ["log", "debug", "info", "warn", "error", "assert", "dir",
-    "dirxml", "group", "groupEnd", "time", "timeEnd", "count", "trace",
-    "profile", "profileEnd"];
-  window.console = {};
-  for (var i = 0; i < names.length; ++i)
-    window.console[names[i]] = function() {};
-}
- */
-
-/**
- * small helper function to urldecode strings
- */
-jQuery.urldecode = function(x) {
-  return decodeURIComponent(x).replace(/\+/g, ' ');
-};
-
-/**
- * small helper function to urlencode strings
- */
-jQuery.urlencode = encodeURIComponent;
-
-/**
- * This function returns the parsed url parameters of the
- * current request. Multiple values per key are supported,
- * it will always return arrays of strings for the value parts.
- */
-jQuery.getQueryParameters = function(s) {
-  if (typeof s === 'undefined')
-    s = document.location.search;
-  var parts = s.substr(s.indexOf('?') + 1).split('&');
-  var result = {};
-  for (var i = 0; i < parts.length; i++) {
-    var tmp = parts[i].split('=', 2);
-    var key = jQuery.urldecode(tmp[0]);
-    var value = jQuery.urldecode(tmp[1]);
-    if (key in result)
-      result[key].push(value);
-    else
-      result[key] = [value];
-  }
-  return result;
-};
-
-/**
- * highlight a given string on a jquery object by wrapping it in
- * span elements with the given class name.
- */
-jQuery.fn.highlightText = function(text, className) {
-  function highlight(node, addItems) {
-    if (node.nodeType === 3) {
-      var val = node.nodeValue;
-      var pos = val.toLowerCase().indexOf(text);
-      if (pos >= 0 &&
-          !jQuery(node.parentNode).hasClass(className) &&
-          !jQuery(node.parentNode).hasClass("nohighlight")) {
-        var span;
-        var isInSVG = jQuery(node).closest("body, svg, foreignObject").is("svg");
-        if (isInSVG) {
-          span = document.createElementNS("http://www.w3.org/2000/svg", "tspan");
-        } else {
-          span = document.createElement("span");
-          span.className = className;
-        }
-        span.appendChild(document.createTextNode(val.substr(pos, text.length)));
-        node.parentNode.insertBefore(span, node.parentNode.insertBefore(
-          document.createTextNode(val.substr(pos + text.length)),
-          node.nextSibling));
-        node.nodeValue = val.substr(0, pos);
-        if (isInSVG) {
-          var rect = document.createElementNS("http://www.w3.org/2000/svg", "rect");
-          var bbox = node.parentElement.getBBox();
-          rect.x.baseVal.value = bbox.x;
-          rect.y.baseVal.value = bbox.y;
-          rect.width.baseVal.value = bbox.width;
-          rect.height.baseVal.value = bbox.height;
-          rect.setAttribute('class', className);
-          addItems.push({
-              "parent": node.parentNode,
-              "target": rect});
-        }
-      }
-    }
-    else if (!jQuery(node).is("button, select, textarea")) {
-      jQuery.each(node.childNodes, function() {
-        highlight(this, addItems);
-      });
-    }
-  }
-  var addItems = [];
-  var result = this.each(function() {
-    highlight(this, addItems);
-  });
-  for (var i = 0; i < addItems.length; ++i) {
-    jQuery(addItems[i].parent).before(addItems[i].target);
-  }
-  return result;
-};
-
-/*
- * backward compatibility for jQuery.browser
- * This will be supported until firefox bug is fixed.
- */
-if (!jQuery.browser) {
-  jQuery.uaMatch = function(ua) {
-    ua = ua.toLowerCase();
-
-    var match = /(chrome)[ \/]([\w.]+)/.exec(ua) ||
-      /(webkit)[ \/]([\w.]+)/.exec(ua) ||
-      /(opera)(?:.*version|)[ \/]([\w.]+)/.exec(ua) ||
-      /(msie) ([\w.]+)/.exec(ua) ||
-      ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua) ||
-      [];
-
-    return {
-      browser: match[ 1 ] || "",
-      version: match[ 2 ] || "0"
-    };
-  };
-  jQuery.browser = {};
-  jQuery.browser[jQuery.uaMatch(navigator.userAgent).browser] = true;
-}
-
-/**
- * Small JavaScript module for the documentation.
- */
-var Documentation = {
-
-  init : function() {
-    this.fixFirefoxAnchorBug();
-    this.highlightSearchWords();
-    this.initIndexTable();
-    if (DOCUMENTATION_OPTIONS.NAVIGATION_WITH_KEYS) {
-      this.initOnKeyListeners();
-    }
-  },
-
-  /**
-   * i18n support
-   */
-  TRANSLATIONS : {},
-  PLURAL_EXPR : function(n) { return n === 1 ? 0 : 1; },
-  LOCALE : 'unknown',
-
-  // gettext and ngettext don't access this so that the functions
-  // can safely bound to a different name (_ = Documentation.gettext)
-  gettext : function(string) {
-    var translated = Documentation.TRANSLATIONS[string];
-    if (typeof translated === 'undefined')
-      return string;
-    return (typeof translated === 'string') ? translated : translated[0];
-  },
-
-  ngettext : function(singular, plural, n) {
-    var translated = Documentation.TRANSLATIONS[singular];
-    if (typeof translated === 'undefined')
-      return (n == 1) ? singular : plural;
-    return translated[Documentation.PLURALEXPR(n)];
-  },
-
-  addTranslations : function(catalog) {
-    for (var key in catalog.messages)
-      this.TRANSLATIONS[key] = catalog.messages[key];
-    this.PLURAL_EXPR = new Function('n', 'return +(' + catalog.plural_expr + ')');
-    this.LOCALE = catalog.locale;
-  },
-
-  /**
-   * add context elements like header anchor links
-   */
-  addContextElements : function() {
-    $('div[id] > :header:first').each(function() {
-      $('<a class="headerlink">\u00B6</a>').
-      attr('href', '#' + this.id).
-      attr('title', _('Permalink to this headline')).
-      appendTo(this);
-    });
-    $('dt[id]').each(function() {
-      $('<a class="headerlink">\u00B6</a>').
-      attr('href', '#' + this.id).
-      attr('title', _('Permalink to this definition')).
-      appendTo(this);
-    });
-  },
-
-  /**
-   * workaround a firefox stupidity
-   * see: https://bugzilla.mozilla.org/show_bug.cgi?id=645075
-   */
-  fixFirefoxAnchorBug : function() {
-    if (document.location.hash && $.browser.mozilla)
-      window.setTimeout(function() {
-        document.location.href += '';
-      }, 10);
-  },
-
-  /**
-   * highlight the search words provided in the url in the text
-   */
-  highlightSearchWords : function() {
-    var params = $.getQueryParameters();
-    var terms = (params.highlight) ? params.highlight[0].split(/\s+/) : [];
-    if (terms.length) {
-      var body = $('div.body');
-      if (!body.length) {
-        body = $('body');
-      }
-      window.setTimeout(function() {
-        $.each(terms, function() {
-          body.highlightText(this.toLowerCase(), 'highlighted');
-        });
-      }, 10);
-      $('<p class="highlight-link"><a href="javascript:Documentation.' +
-        'hideSearchWords()">' + _('Hide Search Matches') + '</a></p>')
-          .appendTo($('#searchbox'));
-    }
-  },
-
-  /**
-   * init the domain index toggle buttons
-   */
-  initIndexTable : function() {
-    var togglers = $('img.toggler').click(function() {
-      var src = $(this).attr('src');
-      var idnum = $(this).attr('id').substr(7);
-      $('tr.cg-' + idnum).toggle();
-      if (src.substr(-9) === 'minus.png')
-        $(this).attr('src', src.substr(0, src.length-9) + 'plus.png');
-      else
-        $(this).attr('src', src.substr(0, src.length-8) + 'minus.png');
-    }).css('display', '');
-    if (DOCUMENTATION_OPTIONS.COLLAPSE_INDEX) {
-        togglers.click();
-    }
-  },
-
-  /**
-   * helper function to hide the search marks again
-   */
-  hideSearchWords : function() {
-    $('#searchbox .highlight-link').fadeOut(300);
-    $('span.highlighted').removeClass('highlighted');
-  },
-
-  /**
-   * make the url absolute
-   */
-  makeURL : function(relativeURL) {
-    return DOCUMENTATION_OPTIONS.URL_ROOT + '/' + relativeURL;
-  },
-
-  /**
-   * get the current relative url
-   */
-  getCurrentURL : function() {
-    var path = document.location.pathname;
-    var parts = path.split(/\//);
-    $.each(DOCUMENTATION_OPTIONS.URL_ROOT.split(/\//), function() {
-      if (this === '..')
-        parts.pop();
-    });
-    var url = parts.join('/');
-    return path.substring(url.lastIndexOf('/') + 1, path.length - 1);
-  },
-
-  initOnKeyListeners: function() {
-    $(document).keyup(function(event) {
-      var activeElementType = document.activeElement.tagName;
-      // don't navigate when in search box or textarea
-      if (activeElementType !== 'TEXTAREA' && activeElementType !== 'INPUT' && activeElementType !== 'SELECT') {
-        switch (event.keyCode) {
-          case 37: // left
-            var prevHref = $('link[rel="prev"]').prop('href');
-            if (prevHref) {
-              window.location.href = prevHref;
-              return false;
-            }
-          case 39: // right
-            var nextHref = $('link[rel="next"]').prop('href');
-            if (nextHref) {
-              window.location.href = nextHref;
-              return false;
-            }
-        }
-      }
-    });
-  }
-};
-
-// quick alias for translations
-_ = Documentation.gettext;
-
-$(document).ready(function() {
-  Documentation.init();
-});
diff --git a/docs/_static/documentation_options.js b/docs/_static/documentation_options.js
deleted file mode 100644
index d3acadc4..00000000
--- a/docs/_static/documentation_options.js
+++ /dev/null
@@ -1,11 +0,0 @@
-var DOCUMENTATION_OPTIONS = {
-    URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'),
-    VERSION: '',
-    LANGUAGE: 'en',
-    COLLAPSE_INDEX: false,
-    BUILDER: 'html',
-    FILE_SUFFIX: '.html',
-    HAS_SOURCE: true,
-    SOURCELINK_SUFFIX: '.txt',
-    NAVIGATION_WITH_KEYS: false
-};
\ No newline at end of file
diff --git a/docs/_static/file.png b/docs/_static/file.png
deleted file mode 100644
index a858a410..00000000
Binary files a/docs/_static/file.png and /dev/null differ
diff --git a/docs/_static/jquery-3.4.1.js b/docs/_static/jquery-3.4.1.js
deleted file mode 100644
index 773ad95c..00000000
--- a/docs/_static/jquery-3.4.1.js
+++ /dev/null
@@ -1,10598 +0,0 @@
-/*!
- * jQuery JavaScript Library v3.4.1
- * https://jquery.com/
- *
- * Includes Sizzle.js
- * https://sizzlejs.com/
- *
- * Copyright JS Foundation and other contributors
- * Released under the MIT license
- * https://jquery.org/license
- *
- * Date: 2019-05-01T21:04Z
- */
-( function( global, factory ) {
-
-	"use strict";
-
-	if ( typeof module === "object" && typeof module.exports === "object" ) {
-
-		// For CommonJS and CommonJS-like environments where a proper `window`
-		// is present, execute the factory and get jQuery.
-		// For environments that do not have a `window` with a `document`
-		// (such as Node.js), expose a factory as module.exports.
-		// This accentuates the need for the creation of a real `window`.
-		// e.g. var jQuery = require("jquery")(window);
-		// See ticket #14549 for more info.
-		module.exports = global.document ?
-			factory( global, true ) :
-			function( w ) {
-				if ( !w.document ) {
-					throw new Error( "jQuery requires a window with a document" );
-				}
-				return factory( w );
-			};
-	} else {
-		factory( global );
-	}
-
-// Pass this if window is not defined yet
-} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
-
-// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
-// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
-// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
-// enough that all such attempts are guarded in a try block.
-"use strict";
-
-var arr = [];
-
-var document = window.document;
-
-var getProto = Object.getPrototypeOf;
-
-var slice = arr.slice;
-
-var concat = arr.concat;
-
-var push = arr.push;
-
-var indexOf = arr.indexOf;
-
-var class2type = {};
-
-var toString = class2type.toString;
-
-var hasOwn = class2type.hasOwnProperty;
-
-var fnToString = hasOwn.toString;
-
-var ObjectFunctionString = fnToString.call( Object );
-
-var support = {};
-
-var isFunction = function isFunction( obj ) {
-
-      // Support: Chrome <=57, Firefox <=52
-      // In some browsers, typeof returns "function" for HTML <object> elements
-      // (i.e., `typeof document.createElement( "object" ) === "function"`).
-      // We don't want to classify *any* DOM node as a function.
-      return typeof obj === "function" && typeof obj.nodeType !== "number";
-  };
-
-
-var isWindow = function isWindow( obj ) {
-		return obj != null && obj === obj.window;
-	};
-
-
-
-
-	var preservedScriptAttributes = {
-		type: true,
-		src: true,
-		nonce: true,
-		noModule: true
-	};
-
-	function DOMEval( code, node, doc ) {
-		doc = doc || document;
-
-		var i, val,
-			script = doc.createElement( "script" );
-
-		script.text = code;
-		if ( node ) {
-			for ( i in preservedScriptAttributes ) {
-
-				// Support: Firefox 64+, Edge 18+
-				// Some browsers don't support the "nonce" property on scripts.
-				// On the other hand, just using `getAttribute` is not enough as
-				// the `nonce` attribute is reset to an empty string whenever it
-				// becomes browsing-context connected.
-				// See https://github.com/whatwg/html/issues/2369
-				// See https://html.spec.whatwg.org/#nonce-attributes
-				// The `node.getAttribute` check was added for the sake of
-				// `jQuery.globalEval` so that it can fake a nonce-containing node
-				// via an object.
-				val = node[ i ] || node.getAttribute && node.getAttribute( i );
-				if ( val ) {
-					script.setAttribute( i, val );
-				}
-			}
-		}
-		doc.head.appendChild( script ).parentNode.removeChild( script );
-	}
-
-
-function toType( obj ) {
-	if ( obj == null ) {
-		return obj + "";
-	}
-
-	// Support: Android <=2.3 only (functionish RegExp)
-	return typeof obj === "object" || typeof obj === "function" ?
-		class2type[ toString.call( obj ) ] || "object" :
-		typeof obj;
-}
-/* global Symbol */
-// Defining this global in .eslintrc.json would create a danger of using the global
-// unguarded in another place, it seems safer to define global only for this module
-
-
-
-var
-	version = "3.4.1",
-
-	// Define a local copy of jQuery
-	jQuery = function( selector, context ) {
-
-		// The jQuery object is actually just the init constructor 'enhanced'
-		// Need init if jQuery is called (just allow error to be thrown if not included)
-		return new jQuery.fn.init( selector, context );
-	},
-
-	// Support: Android <=4.0 only
-	// Make sure we trim BOM and NBSP
-	rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
-
-jQuery.fn = jQuery.prototype = {
-
-	// The current version of jQuery being used
-	jquery: version,
-
-	constructor: jQuery,
-
-	// The default length of a jQuery object is 0
-	length: 0,
-
-	toArray: function() {
-		return slice.call( this );
-	},
-
-	// Get the Nth element in the matched element set OR
-	// Get the whole matched element set as a clean array
-	get: function( num ) {
-
-		// Return all the elements in a clean array
-		if ( num == null ) {
-			return slice.call( this );
-		}
-
-		// Return just the one element from the set
-		return num < 0 ? this[ num + this.length ] : this[ num ];
-	},
-
-	// Take an array of elements and push it onto the stack
-	// (returning the new matched element set)
-	pushStack: function( elems ) {
-
-		// Build a new jQuery matched element set
-		var ret = jQuery.merge( this.constructor(), elems );
-
-		// Add the old object onto the stack (as a reference)
-		ret.prevObject = this;
-
-		// Return the newly-formed element set
-		return ret;
-	},
-
-	// Execute a callback for every element in the matched set.
-	each: function( callback ) {
-		return jQuery.each( this, callback );
-	},
-
-	map: function( callback ) {
-		return this.pushStack( jQuery.map( this, function( elem, i ) {
-			return callback.call( elem, i, elem );
-		} ) );
-	},
-
-	slice: function() {
-		return this.pushStack( slice.apply( this, arguments ) );
-	},
-
-	first: function() {
-		return this.eq( 0 );
-	},
-
-	last: function() {
-		return this.eq( -1 );
-	},
-
-	eq: function( i ) {
-		var len = this.length,
-			j = +i + ( i < 0 ? len : 0 );
-		return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
-	},
-
-	end: function() {
-		return this.prevObject || this.constructor();
-	},
-
-	// For internal use only.
-	// Behaves like an Array's method, not like a jQuery method.
-	push: push,
-	sort: arr.sort,
-	splice: arr.splice
-};
-
-jQuery.extend = jQuery.fn.extend = function() {
-	var options, name, src, copy, copyIsArray, clone,
-		target = arguments[ 0 ] || {},
-		i = 1,
-		length = arguments.length,
-		deep = false;
-
-	// Handle a deep copy situation
-	if ( typeof target === "boolean" ) {
-		deep = target;
-
-		// Skip the boolean and the target
-		target = arguments[ i ] || {};
-		i++;
-	}
-
-	// Handle case when target is a string or something (possible in deep copy)
-	if ( typeof target !== "object" && !isFunction( target ) ) {
-		target = {};
-	}
-
-	// Extend jQuery itself if only one argument is passed
-	if ( i === length ) {
-		target = this;
-		i--;
-	}
-
-	for ( ; i < length; i++ ) {
-
-		// Only deal with non-null/undefined values
-		if ( ( options = arguments[ i ] ) != null ) {
-
-			// Extend the base object
-			for ( name in options ) {
-				copy = options[ name ];
-
-				// Prevent Object.prototype pollution
-				// Prevent never-ending loop
-				if ( name === "__proto__" || target === copy ) {
-					continue;
-				}
-
-				// Recurse if we're merging plain objects or arrays
-				if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
-					( copyIsArray = Array.isArray( copy ) ) ) ) {
-					src = target[ name ];
-
-					// Ensure proper type for the source value
-					if ( copyIsArray && !Array.isArray( src ) ) {
-						clone = [];
-					} else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) {
-						clone = {};
-					} else {
-						clone = src;
-					}
-					copyIsArray = false;
-
-					// Never move original objects, clone them
-					target[ name ] = jQuery.extend( deep, clone, copy );
-
-				// Don't bring in undefined values
-				} else if ( copy !== undefined ) {
-					target[ name ] = copy;
-				}
-			}
-		}
-	}
-
-	// Return the modified object
-	return target;
-};
-
-jQuery.extend( {
-
-	// Unique for each copy of jQuery on the page
-	expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
-
-	// Assume jQuery is ready without the ready module
-	isReady: true,
-
-	error: function( msg ) {
-		throw new Error( msg );
-	},
-
-	noop: function() {},
-
-	isPlainObject: function( obj ) {
-		var proto, Ctor;
-
-		// Detect obvious negatives
-		// Use toString instead of jQuery.type to catch host objects
-		if ( !obj || toString.call( obj ) !== "[object Object]" ) {
-			return false;
-		}
-
-		proto = getProto( obj );
-
-		// Objects with no prototype (e.g., `Object.create( null )`) are plain
-		if ( !proto ) {
-			return true;
-		}
-
-		// Objects with prototype are plain iff they were constructed by a global Object function
-		Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
-		return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
-	},
-
-	isEmptyObject: function( obj ) {
-		var name;
-
-		for ( name in obj ) {
-			return false;
-		}
-		return true;
-	},
-
-	// Evaluates a script in a global context
-	globalEval: function( code, options ) {
-		DOMEval( code, { nonce: options && options.nonce } );
-	},
-
-	each: function( obj, callback ) {
-		var length, i = 0;
-
-		if ( isArrayLike( obj ) ) {
-			length = obj.length;
-			for ( ; i < length; i++ ) {
-				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
-					break;
-				}
-			}
-		} else {
-			for ( i in obj ) {
-				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
-					break;
-				}
-			}
-		}
-
-		return obj;
-	},
-
-	// Support: Android <=4.0 only
-	trim: function( text ) {
-		return text == null ?
-			"" :
-			( text + "" ).replace( rtrim, "" );
-	},
-
-	// results is for internal usage only
-	makeArray: function( arr, results ) {
-		var ret = results || [];
-
-		if ( arr != null ) {
-			if ( isArrayLike( Object( arr ) ) ) {
-				jQuery.merge( ret,
-					typeof arr === "string" ?
-					[ arr ] : arr
-				);
-			} else {
-				push.call( ret, arr );
-			}
-		}
-
-		return ret;
-	},
-
-	inArray: function( elem, arr, i ) {
-		return arr == null ? -1 : indexOf.call( arr, elem, i );
-	},
-
-	// Support: Android <=4.0 only, PhantomJS 1 only
-	// push.apply(_, arraylike) throws on ancient WebKit
-	merge: function( first, second ) {
-		var len = +second.length,
-			j = 0,
-			i = first.length;
-
-		for ( ; j < len; j++ ) {
-			first[ i++ ] = second[ j ];
-		}
-
-		first.length = i;
-
-		return first;
-	},
-
-	grep: function( elems, callback, invert ) {
-		var callbackInverse,
-			matches = [],
-			i = 0,
-			length = elems.length,
-			callbackExpect = !invert;
-
-		// Go through the array, only saving the items
-		// that pass the validator function
-		for ( ; i < length; i++ ) {
-			callbackInverse = !callback( elems[ i ], i );
-			if ( callbackInverse !== callbackExpect ) {
-				matches.push( elems[ i ] );
-			}
-		}
-
-		return matches;
-	},
-
-	// arg is for internal usage only
-	map: function( elems, callback, arg ) {
-		var length, value,
-			i = 0,
-			ret = [];
-
-		// Go through the array, translating each of the items to their new values
-		if ( isArrayLike( elems ) ) {
-			length = elems.length;
-			for ( ; i < length; i++ ) {
-				value = callback( elems[ i ], i, arg );
-
-				if ( value != null ) {
-					ret.push( value );
-				}
-			}
-
-		// Go through every key on the object,
-		} else {
-			for ( i in elems ) {
-				value = callback( elems[ i ], i, arg );
-
-				if ( value != null ) {
-					ret.push( value );
-				}
-			}
-		}
-
-		// Flatten any nested arrays
-		return concat.apply( [], ret );
-	},
-
-	// A global GUID counter for objects
-	guid: 1,
-
-	// jQuery.support is not used in Core but other projects attach their
-	// properties to it so it needs to exist.
-	support: support
-} );
-
-if ( typeof Symbol === "function" ) {
-	jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
-}
-
-// Populate the class2type map
-jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
-function( i, name ) {
-	class2type[ "[object " + name + "]" ] = name.toLowerCase();
-} );
-
-function isArrayLike( obj ) {
-
-	// Support: real iOS 8.2 only (not reproducible in simulator)
-	// `in` check used to prevent JIT error (gh-2145)
-	// hasOwn isn't used here due to false negatives
-	// regarding Nodelist length in IE
-	var length = !!obj && "length" in obj && obj.length,
-		type = toType( obj );
-
-	if ( isFunction( obj ) || isWindow( obj ) ) {
-		return false;
-	}
-
-	return type === "array" || length === 0 ||
-		typeof length === "number" && length > 0 && ( length - 1 ) in obj;
-}
-var Sizzle =
-/*!
- * Sizzle CSS Selector Engine v2.3.4
- * https://sizzlejs.com/
- *
- * Copyright JS Foundation and other contributors
- * Released under the MIT license
- * https://js.foundation/
- *
- * Date: 2019-04-08
- */
-(function( window ) {
-
-var i,
-	support,
-	Expr,
-	getText,
-	isXML,
-	tokenize,
-	compile,
-	select,
-	outermostContext,
-	sortInput,
-	hasDuplicate,
-
-	// Local document vars
-	setDocument,
-	document,
-	docElem,
-	documentIsHTML,
-	rbuggyQSA,
-	rbuggyMatches,
-	matches,
-	contains,
-
-	// Instance-specific data
-	expando = "sizzle" + 1 * new Date(),
-	preferredDoc = window.document,
-	dirruns = 0,
-	done = 0,
-	classCache = createCache(),
-	tokenCache = createCache(),
-	compilerCache = createCache(),
-	nonnativeSelectorCache = createCache(),
-	sortOrder = function( a, b ) {
-		if ( a === b ) {
-			hasDuplicate = true;
-		}
-		return 0;
-	},
-
-	// Instance methods
-	hasOwn = ({}).hasOwnProperty,
-	arr = [],
-	pop = arr.pop,
-	push_native = arr.push,
-	push = arr.push,
-	slice = arr.slice,
-	// Use a stripped-down indexOf as it's faster than native
-	// https://jsperf.com/thor-indexof-vs-for/5
-	indexOf = function( list, elem ) {
-		var i = 0,
-			len = list.length;
-		for ( ; i < len; i++ ) {
-			if ( list[i] === elem ) {
-				return i;
-			}
-		}
-		return -1;
-	},
-
-	booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
-
-	// Regular expressions
-
-	// http://www.w3.org/TR/css3-selectors/#whitespace
-	whitespace = "[\\x20\\t\\r\\n\\f]",
-
-	// http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
-	identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",
-
-	// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
-	attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
-		// Operator (capture 2)
-		"*([*^$|!~]?=)" + whitespace +
-		// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
-		"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
-		"*\\]",
-
-	pseudos = ":(" + identifier + ")(?:\\((" +
-		// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
-		// 1. quoted (capture 3; capture 4 or capture 5)
-		"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
-		// 2. simple (capture 6)
-		"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
-		// 3. anything else (capture 2)
-		".*" +
-		")\\)|)",
-
-	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
-	rwhitespace = new RegExp( whitespace + "+", "g" ),
-	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
-
-	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
-	rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
-	rdescend = new RegExp( whitespace + "|>" ),
-
-	rpseudo = new RegExp( pseudos ),
-	ridentifier = new RegExp( "^" + identifier + "$" ),
-
-	matchExpr = {
-		"ID": new RegExp( "^#(" + identifier + ")" ),
-		"CLASS": new RegExp( "^\\.(" + identifier + ")" ),
-		"TAG": new RegExp( "^(" + identifier + "|[*])" ),
-		"ATTR": new RegExp( "^" + attributes ),
-		"PSEUDO": new RegExp( "^" + pseudos ),
-		"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
-			"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
-			"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
-		"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
-		// For use in libraries implementing .is()
-		// We use this for POS matching in `select`
-		"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
-			whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
-	},
-
-	rhtml = /HTML$/i,
-	rinputs = /^(?:input|select|textarea|button)$/i,
-	rheader = /^h\d$/i,
-
-	rnative = /^[^{]+\{\s*\[native \w/,
-
-	// Easily-parseable/retrievable ID or TAG or CLASS selectors
-	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
-
-	rsibling = /[+~]/,
-
-	// CSS escapes
-	// http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
-	runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
-	funescape = function( _, escaped, escapedWhitespace ) {
-		var high = "0x" + escaped - 0x10000;
-		// NaN means non-codepoint
-		// Support: Firefox<24
-		// Workaround erroneous numeric interpretation of +"0x"
-		return high !== high || escapedWhitespace ?
-			escaped :
-			high < 0 ?
-				// BMP codepoint
-				String.fromCharCode( high + 0x10000 ) :
-				// Supplemental Plane codepoint (surrogate pair)
-				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
-	},
-
-	// CSS string/identifier serialization
-	// https://drafts.csswg.org/cssom/#common-serializing-idioms
-	rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
-	fcssescape = function( ch, asCodePoint ) {
-		if ( asCodePoint ) {
-
-			// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
-			if ( ch === "\0" ) {
-				return "\uFFFD";
-			}
-
-			// Control characters and (dependent upon position) numbers get escaped as code points
-			return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
-		}
-
-		// Other potentially-special ASCII characters get backslash-escaped
-		return "\\" + ch;
-	},
-
-	// Used for iframes
-	// See setDocument()
-	// Removing the function wrapper causes a "Permission Denied"
-	// error in IE
-	unloadHandler = function() {
-		setDocument();
-	},
-
-	inDisabledFieldset = addCombinator(
-		function( elem ) {
-			return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset";
-		},
-		{ dir: "parentNode", next: "legend" }
-	);
-
-// Optimize for push.apply( _, NodeList )
-try {
-	push.apply(
-		(arr = slice.call( preferredDoc.childNodes )),
-		preferredDoc.childNodes
-	);
-	// Support: Android<4.0
-	// Detect silently failing push.apply
-	arr[ preferredDoc.childNodes.length ].nodeType;
-} catch ( e ) {
-	push = { apply: arr.length ?
-
-		// Leverage slice if possible
-		function( target, els ) {
-			push_native.apply( target, slice.call(els) );
-		} :
-
-		// Support: IE<9
-		// Otherwise append directly
-		function( target, els ) {
-			var j = target.length,
-				i = 0;
-			// Can't trust NodeList.length
-			while ( (target[j++] = els[i++]) ) {}
-			target.length = j - 1;
-		}
-	};
-}
-
-function Sizzle( selector, context, results, seed ) {
-	var m, i, elem, nid, match, groups, newSelector,
-		newContext = context && context.ownerDocument,
-
-		// nodeType defaults to 9, since context defaults to document
-		nodeType = context ? context.nodeType : 9;
-
-	results = results || [];
-
-	// Return early from calls with invalid selector or context
-	if ( typeof selector !== "string" || !selector ||
-		nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
-
-		return results;
-	}
-
-	// Try to shortcut find operations (as opposed to filters) in HTML documents
-	if ( !seed ) {
-
-		if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
-			setDocument( context );
-		}
-		context = context || document;
-
-		if ( documentIsHTML ) {
-
-			// If the selector is sufficiently simple, try using a "get*By*" DOM method
-			// (excepting DocumentFragment context, where the methods don't exist)
-			if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
-
-				// ID selector
-				if ( (m = match[1]) ) {
-
-					// Document context
-					if ( nodeType === 9 ) {
-						if ( (elem = context.getElementById( m )) ) {
-
-							// Support: IE, Opera, Webkit
-							// TODO: identify versions
-							// getElementById can match elements by name instead of ID
-							if ( elem.id === m ) {
-								results.push( elem );
-								return results;
-							}
-						} else {
-							return results;
-						}
-
-					// Element context
-					} else {
-
-						// Support: IE, Opera, Webkit
-						// TODO: identify versions
-						// getElementById can match elements by name instead of ID
-						if ( newContext && (elem = newContext.getElementById( m )) &&
-							contains( context, elem ) &&
-							elem.id === m ) {
-
-							results.push( elem );
-							return results;
-						}
-					}
-
-				// Type selector
-				} else if ( match[2] ) {
-					push.apply( results, context.getElementsByTagName( selector ) );
-					return results;
-
-				// Class selector
-				} else if ( (m = match[3]) && support.getElementsByClassName &&
-					context.getElementsByClassName ) {
-
-					push.apply( results, context.getElementsByClassName( m ) );
-					return results;
-				}
-			}
-
-			// Take advantage of querySelectorAll
-			if ( support.qsa &&
-				!nonnativeSelectorCache[ selector + " " ] &&
-				(!rbuggyQSA || !rbuggyQSA.test( selector )) &&
-
-				// Support: IE 8 only
-				// Exclude object elements
-				(nodeType !== 1 || context.nodeName.toLowerCase() !== "object") ) {
-
-				newSelector = selector;
-				newContext = context;
-
-				// qSA considers elements outside a scoping root when evaluating child or
-				// descendant combinators, which is not what we want.
-				// In such cases, we work around the behavior by prefixing every selector in the
-				// list with an ID selector referencing the scope context.
-				// Thanks to Andrew Dupont for this technique.
-				if ( nodeType === 1 && rdescend.test( selector ) ) {
-
-					// Capture the context ID, setting it first if necessary
-					if ( (nid = context.getAttribute( "id" )) ) {
-						nid = nid.replace( rcssescape, fcssescape );
-					} else {
-						context.setAttribute( "id", (nid = expando) );
-					}
-
-					// Prefix every selector in the list
-					groups = tokenize( selector );
-					i = groups.length;
-					while ( i-- ) {
-						groups[i] = "#" + nid + " " + toSelector( groups[i] );
-					}
-					newSelector = groups.join( "," );
-
-					// Expand context for sibling selectors
-					newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
-						context;
-				}
-
-				try {
-					push.apply( results,
-						newContext.querySelectorAll( newSelector )
-					);
-					return results;
-				} catch ( qsaError ) {
-					nonnativeSelectorCache( selector, true );
-				} finally {
-					if ( nid === expando ) {
-						context.removeAttribute( "id" );
-					}
-				}
-			}
-		}
-	}
-
-	// All others
-	return select( selector.replace( rtrim, "$1" ), context, results, seed );
-}
-
-/**
- * Create key-value caches of limited size
- * @returns {function(string, object)} Returns the Object data after storing it on itself with
- *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
- *	deleting the oldest entry
- */
-function createCache() {
-	var keys = [];
-
-	function cache( key, value ) {
-		// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
-		if ( keys.push( key + " " ) > Expr.cacheLength ) {
-			// Only keep the most recent entries
-			delete cache[ keys.shift() ];
-		}
-		return (cache[ key + " " ] = value);
-	}
-	return cache;
-}
-
-/**
- * Mark a function for special use by Sizzle
- * @param {Function} fn The function to mark
- */
-function markFunction( fn ) {
-	fn[ expando ] = true;
-	return fn;
-}
-
-/**
- * Support testing using an element
- * @param {Function} fn Passed the created element and returns a boolean result
- */
-function assert( fn ) {
-	var el = document.createElement("fieldset");
-
-	try {
-		return !!fn( el );
-	} catch (e) {
-		return false;
-	} finally {
-		// Remove from its parent by default
-		if ( el.parentNode ) {
-			el.parentNode.removeChild( el );
-		}
-		// release memory in IE
-		el = null;
-	}
-}
-
-/**
- * Adds the same handler for all of the specified attrs
- * @param {String} attrs Pipe-separated list of attributes
- * @param {Function} handler The method that will be applied
- */
-function addHandle( attrs, handler ) {
-	var arr = attrs.split("|"),
-		i = arr.length;
-
-	while ( i-- ) {
-		Expr.attrHandle[ arr[i] ] = handler;
-	}
-}
-
-/**
- * Checks document order of two siblings
- * @param {Element} a
- * @param {Element} b
- * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
- */
-function siblingCheck( a, b ) {
-	var cur = b && a,
-		diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
-			a.sourceIndex - b.sourceIndex;
-
-	// Use IE sourceIndex if available on both nodes
-	if ( diff ) {
-		return diff;
-	}
-
-	// Check if b follows a
-	if ( cur ) {
-		while ( (cur = cur.nextSibling) ) {
-			if ( cur === b ) {
-				return -1;
-			}
-		}
-	}
-
-	return a ? 1 : -1;
-}
-
-/**
- * Returns a function to use in pseudos for input types
- * @param {String} type
- */
-function createInputPseudo( type ) {
-	return function( elem ) {
-		var name = elem.nodeName.toLowerCase();
-		return name === "input" && elem.type === type;
-	};
-}
-
-/**
- * Returns a function to use in pseudos for buttons
- * @param {String} type
- */
-function createButtonPseudo( type ) {
-	return function( elem ) {
-		var name = elem.nodeName.toLowerCase();
-		return (name === "input" || name === "button") && elem.type === type;
-	};
-}
-
-/**
- * Returns a function to use in pseudos for :enabled/:disabled
- * @param {Boolean} disabled true for :disabled; false for :enabled
- */
-function createDisabledPseudo( disabled ) {
-
-	// Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
-	return function( elem ) {
-
-		// Only certain elements can match :enabled or :disabled
-		// https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
-		// https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
-		if ( "form" in elem ) {
-
-			// Check for inherited disabledness on relevant non-disabled elements:
-			// * listed form-associated elements in a disabled fieldset
-			//   https://html.spec.whatwg.org/multipage/forms.html#category-listed
-			//   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
-			// * option elements in a disabled optgroup
-			//   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
-			// All such elements have a "form" property.
-			if ( elem.parentNode && elem.disabled === false ) {
-
-				// Option elements defer to a parent optgroup if present
-				if ( "label" in elem ) {
-					if ( "label" in elem.parentNode ) {
-						return elem.parentNode.disabled === disabled;
-					} else {
-						return elem.disabled === disabled;
-					}
-				}
-
-				// Support: IE 6 - 11
-				// Use the isDisabled shortcut property to check for disabled fieldset ancestors
-				return elem.isDisabled === disabled ||
-
-					// Where there is no isDisabled, check manually
-					/* jshint -W018 */
-					elem.isDisabled !== !disabled &&
-						inDisabledFieldset( elem ) === disabled;
-			}
-
-			return elem.disabled === disabled;
-
-		// Try to winnow out elements that can't be disabled before trusting the disabled property.
-		// Some victims get caught in our net (label, legend, menu, track), but it shouldn't
-		// even exist on them, let alone have a boolean value.
-		} else if ( "label" in elem ) {
-			return elem.disabled === disabled;
-		}
-
-		// Remaining elements are neither :enabled nor :disabled
-		return false;
-	};
-}
-
-/**
- * Returns a function to use in pseudos for positionals
- * @param {Function} fn
- */
-function createPositionalPseudo( fn ) {
-	return markFunction(function( argument ) {
-		argument = +argument;
-		return markFunction(function( seed, matches ) {
-			var j,
-				matchIndexes = fn( [], seed.length, argument ),
-				i = matchIndexes.length;
-
-			// Match elements found at the specified indexes
-			while ( i-- ) {
-				if ( seed[ (j = matchIndexes[i]) ] ) {
-					seed[j] = !(matches[j] = seed[j]);
-				}
-			}
-		});
-	});
-}
-
-/**
- * Checks a node for validity as a Sizzle context
- * @param {Element|Object=} context
- * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
- */
-function testContext( context ) {
-	return context && typeof context.getElementsByTagName !== "undefined" && context;
-}
-
-// Expose support vars for convenience
-support = Sizzle.support = {};
-
-/**
- * Detects XML nodes
- * @param {Element|Object} elem An element or a document
- * @returns {Boolean} True iff elem is a non-HTML XML node
- */
-isXML = Sizzle.isXML = function( elem ) {
-	var namespace = elem.namespaceURI,
-		docElem = (elem.ownerDocument || elem).documentElement;
-
-	// Support: IE <=8
-	// Assume HTML when documentElement doesn't yet exist, such as inside loading iframes
-	// https://bugs.jquery.com/ticket/4833
-	return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" );
-};
-
-/**
- * Sets document-related variables once based on the current document
- * @param {Element|Object} [doc] An element or document object to use to set the document
- * @returns {Object} Returns the current document
- */
-setDocument = Sizzle.setDocument = function( node ) {
-	var hasCompare, subWindow,
-		doc = node ? node.ownerDocument || node : preferredDoc;
-
-	// Return early if doc is invalid or already selected
-	if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
-		return document;
-	}
-
-	// Update global variables
-	document = doc;
-	docElem = document.documentElement;
-	documentIsHTML = !isXML( document );
-
-	// Support: IE 9-11, Edge
-	// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
-	if ( preferredDoc !== document &&
-		(subWindow = document.defaultView) && subWindow.top !== subWindow ) {
-
-		// Support: IE 11, Edge
-		if ( subWindow.addEventListener ) {
-			subWindow.addEventListener( "unload", unloadHandler, false );
-
-		// Support: IE 9 - 10 only
-		} else if ( subWindow.attachEvent ) {
-			subWindow.attachEvent( "onunload", unloadHandler );
-		}
-	}
-
-	/* Attributes
-	---------------------------------------------------------------------- */
-
-	// Support: IE<8
-	// Verify that getAttribute really returns attributes and not properties
-	// (excepting IE8 booleans)
-	support.attributes = assert(function( el ) {
-		el.className = "i";
-		return !el.getAttribute("className");
-	});
-
-	/* getElement(s)By*
-	---------------------------------------------------------------------- */
-
-	// Check if getElementsByTagName("*") returns only elements
-	support.getElementsByTagName = assert(function( el ) {
-		el.appendChild( document.createComment("") );
-		return !el.getElementsByTagName("*").length;
-	});
-
-	// Support: IE<9
-	support.getElementsByClassName = rnative.test( document.getElementsByClassName );
-
-	// Support: IE<10
-	// Check if getElementById returns elements by name
-	// The broken getElementById methods don't pick up programmatically-set names,
-	// so use a roundabout getElementsByName test
-	support.getById = assert(function( el ) {
-		docElem.appendChild( el ).id = expando;
-		return !document.getElementsByName || !document.getElementsByName( expando ).length;
-	});
-
-	// ID filter and find
-	if ( support.getById ) {
-		Expr.filter["ID"] = function( id ) {
-			var attrId = id.replace( runescape, funescape );
-			return function( elem ) {
-				return elem.getAttribute("id") === attrId;
-			};
-		};
-		Expr.find["ID"] = function( id, context ) {
-			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
-				var elem = context.getElementById( id );
-				return elem ? [ elem ] : [];
-			}
-		};
-	} else {
-		Expr.filter["ID"] =  function( id ) {
-			var attrId = id.replace( runescape, funescape );
-			return function( elem ) {
-				var node = typeof elem.getAttributeNode !== "undefined" &&
-					elem.getAttributeNode("id");
-				return node && node.value === attrId;
-			};
-		};
-
-		// Support: IE 6 - 7 only
-		// getElementById is not reliable as a find shortcut
-		Expr.find["ID"] = function( id, context ) {
-			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
-				var node, i, elems,
-					elem = context.getElementById( id );
-
-				if ( elem ) {
-
-					// Verify the id attribute
-					node = elem.getAttributeNode("id");
-					if ( node && node.value === id ) {
-						return [ elem ];
-					}
-
-					// Fall back on getElementsByName
-					elems = context.getElementsByName( id );
-					i = 0;
-					while ( (elem = elems[i++]) ) {
-						node = elem.getAttributeNode("id");
-						if ( node && node.value === id ) {
-							return [ elem ];
-						}
-					}
-				}
-
-				return [];
-			}
-		};
-	}
-
-	// Tag
-	Expr.find["TAG"] = support.getElementsByTagName ?
-		function( tag, context ) {
-			if ( typeof context.getElementsByTagName !== "undefined" ) {
-				return context.getElementsByTagName( tag );
-
-			// DocumentFragment nodes don't have gEBTN
-			} else if ( support.qsa ) {
-				return context.querySelectorAll( tag );
-			}
-		} :
-
-		function( tag, context ) {
-			var elem,
-				tmp = [],
-				i = 0,
-				// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
-				results = context.getElementsByTagName( tag );
-
-			// Filter out possible comments
-			if ( tag === "*" ) {
-				while ( (elem = results[i++]) ) {
-					if ( elem.nodeType === 1 ) {
-						tmp.push( elem );
-					}
-				}
-
-				return tmp;
-			}
-			return results;
-		};
-
-	// Class
-	Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
-		if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
-			return context.getElementsByClassName( className );
-		}
-	};
-
-	/* QSA/matchesSelector
-	---------------------------------------------------------------------- */
-
-	// QSA and matchesSelector support
-
-	// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
-	rbuggyMatches = [];
-
-	// qSa(:focus) reports false when true (Chrome 21)
-	// We allow this because of a bug in IE8/9 that throws an error
-	// whenever `document.activeElement` is accessed on an iframe
-	// So, we allow :focus to pass through QSA all the time to avoid the IE error
-	// See https://bugs.jquery.com/ticket/13378
-	rbuggyQSA = [];
-
-	if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
-		// Build QSA regex
-		// Regex strategy adopted from Diego Perini
-		assert(function( el ) {
-			// Select is set to empty string on purpose
-			// This is to test IE's treatment of not explicitly
-			// setting a boolean content attribute,
-			// since its presence should be enough
-			// https://bugs.jquery.com/ticket/12359
-			docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
-				"<select id='" + expando + "-\r\\' msallowcapture=''>" +
-				"<option selected=''></option></select>";
-
-			// Support: IE8, Opera 11-12.16
-			// Nothing should be selected when empty strings follow ^= or $= or *=
-			// The test attribute must be unknown in Opera but "safe" for WinRT
-			// https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
-			if ( el.querySelectorAll("[msallowcapture^='']").length ) {
-				rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
-			}
-
-			// Support: IE8
-			// Boolean attributes and "value" are not treated correctly
-			if ( !el.querySelectorAll("[selected]").length ) {
-				rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
-			}
-
-			// Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
-			if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
-				rbuggyQSA.push("~=");
-			}
-
-			// Webkit/Opera - :checked should return selected option elements
-			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
-			// IE8 throws error here and will not see later tests
-			if ( !el.querySelectorAll(":checked").length ) {
-				rbuggyQSA.push(":checked");
-			}
-
-			// Support: Safari 8+, iOS 8+
-			// https://bugs.webkit.org/show_bug.cgi?id=136851
-			// In-page `selector#id sibling-combinator selector` fails
-			if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
-				rbuggyQSA.push(".#.+[+~]");
-			}
-		});
-
-		assert(function( el ) {
-			el.innerHTML = "<a href='' disabled='disabled'></a>" +
-				"<select disabled='disabled'><option/></select>";
-
-			// Support: Windows 8 Native Apps
-			// The type and name attributes are restricted during .innerHTML assignment
-			var input = document.createElement("input");
-			input.setAttribute( "type", "hidden" );
-			el.appendChild( input ).setAttribute( "name", "D" );
-
-			// Support: IE8
-			// Enforce case-sensitivity of name attribute
-			if ( el.querySelectorAll("[name=d]").length ) {
-				rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
-			}
-
-			// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
-			// IE8 throws error here and will not see later tests
-			if ( el.querySelectorAll(":enabled").length !== 2 ) {
-				rbuggyQSA.push( ":enabled", ":disabled" );
-			}
-
-			// Support: IE9-11+
-			// IE's :disabled selector does not pick up the children of disabled fieldsets
-			docElem.appendChild( el ).disabled = true;
-			if ( el.querySelectorAll(":disabled").length !== 2 ) {
-				rbuggyQSA.push( ":enabled", ":disabled" );
-			}
-
-			// Opera 10-11 does not throw on post-comma invalid pseudos
-			el.querySelectorAll("*,:x");
-			rbuggyQSA.push(",.*:");
-		});
-	}
-
-	if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
-		docElem.webkitMatchesSelector ||
-		docElem.mozMatchesSelector ||
-		docElem.oMatchesSelector ||
-		docElem.msMatchesSelector) )) ) {
-
-		assert(function( el ) {
-			// Check to see if it's possible to do matchesSelector
-			// on a disconnected node (IE 9)
-			support.disconnectedMatch = matches.call( el, "*" );
-
-			// This should fail with an exception
-			// Gecko does not error, returns false instead
-			matches.call( el, "[s!='']:x" );
-			rbuggyMatches.push( "!=", pseudos );
-		});
-	}
-
-	rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
-	rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
-
-	/* Contains
-	---------------------------------------------------------------------- */
-	hasCompare = rnative.test( docElem.compareDocumentPosition );
-
-	// Element contains another
-	// Purposefully self-exclusive
-	// As in, an element does not contain itself
-	contains = hasCompare || rnative.test( docElem.contains ) ?
-		function( a, b ) {
-			var adown = a.nodeType === 9 ? a.documentElement : a,
-				bup = b && b.parentNode;
-			return a === bup || !!( bup && bup.nodeType === 1 && (
-				adown.contains ?
-					adown.contains( bup ) :
-					a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
-			));
-		} :
-		function( a, b ) {
-			if ( b ) {
-				while ( (b = b.parentNode) ) {
-					if ( b === a ) {
-						return true;
-					}
-				}
-			}
-			return false;
-		};
-
-	/* Sorting
-	---------------------------------------------------------------------- */
-
-	// Document order sorting
-	sortOrder = hasCompare ?
-	function( a, b ) {
-
-		// Flag for duplicate removal
-		if ( a === b ) {
-			hasDuplicate = true;
-			return 0;
-		}
-
-		// Sort on method existence if only one input has compareDocumentPosition
-		var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
-		if ( compare ) {
-			return compare;
-		}
-
-		// Calculate position if both inputs belong to the same document
-		compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
-			a.compareDocumentPosition( b ) :
-
-			// Otherwise we know they are disconnected
-			1;
-
-		// Disconnected nodes
-		if ( compare & 1 ||
-			(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
-
-			// Choose the first element that is related to our preferred document
-			if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
-				return -1;
-			}
-			if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
-				return 1;
-			}
-
-			// Maintain original order
-			return sortInput ?
-				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
-				0;
-		}
-
-		return compare & 4 ? -1 : 1;
-	} :
-	function( a, b ) {
-		// Exit early if the nodes are identical
-		if ( a === b ) {
-			hasDuplicate = true;
-			return 0;
-		}
-
-		var cur,
-			i = 0,
-			aup = a.parentNode,
-			bup = b.parentNode,
-			ap = [ a ],
-			bp = [ b ];
-
-		// Parentless nodes are either documents or disconnected
-		if ( !aup || !bup ) {
-			return a === document ? -1 :
-				b === document ? 1 :
-				aup ? -1 :
-				bup ? 1 :
-				sortInput ?
-				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
-				0;
-
-		// If the nodes are siblings, we can do a quick check
-		} else if ( aup === bup ) {
-			return siblingCheck( a, b );
-		}
-
-		// Otherwise we need full lists of their ancestors for comparison
-		cur = a;
-		while ( (cur = cur.parentNode) ) {
-			ap.unshift( cur );
-		}
-		cur = b;
-		while ( (cur = cur.parentNode) ) {
-			bp.unshift( cur );
-		}
-
-		// Walk down the tree looking for a discrepancy
-		while ( ap[i] === bp[i] ) {
-			i++;
-		}
-
-		return i ?
-			// Do a sibling check if the nodes have a common ancestor
-			siblingCheck( ap[i], bp[i] ) :
-
-			// Otherwise nodes in our document sort first
-			ap[i] === preferredDoc ? -1 :
-			bp[i] === preferredDoc ? 1 :
-			0;
-	};
-
-	return document;
-};
-
-Sizzle.matches = function( expr, elements ) {
-	return Sizzle( expr, null, null, elements );
-};
-
-Sizzle.matchesSelector = function( elem, expr ) {
-	// Set document vars if needed
-	if ( ( elem.ownerDocument || elem ) !== document ) {
-		setDocument( elem );
-	}
-
-	if ( support.matchesSelector && documentIsHTML &&
-		!nonnativeSelectorCache[ expr + " " ] &&
-		( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
-		( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {
-
-		try {
-			var ret = matches.call( elem, expr );
-
-			// IE 9's matchesSelector returns false on disconnected nodes
-			if ( ret || support.disconnectedMatch ||
-					// As well, disconnected nodes are said to be in a document
-					// fragment in IE 9
-					elem.document && elem.document.nodeType !== 11 ) {
-				return ret;
-			}
-		} catch (e) {
-			nonnativeSelectorCache( expr, true );
-		}
-	}
-
-	return Sizzle( expr, document, null, [ elem ] ).length > 0;
-};
-
-Sizzle.contains = function( context, elem ) {
-	// Set document vars if needed
-	if ( ( context.ownerDocument || context ) !== document ) {
-		setDocument( context );
-	}
-	return contains( context, elem );
-};
-
-Sizzle.attr = function( elem, name ) {
-	// Set document vars if needed
-	if ( ( elem.ownerDocument || elem ) !== document ) {
-		setDocument( elem );
-	}
-
-	var fn = Expr.attrHandle[ name.toLowerCase() ],
-		// Don't get fooled by Object.prototype properties (jQuery #13807)
-		val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
-			fn( elem, name, !documentIsHTML ) :
-			undefined;
-
-	return val !== undefined ?
-		val :
-		support.attributes || !documentIsHTML ?
-			elem.getAttribute( name ) :
-			(val = elem.getAttributeNode(name)) && val.specified ?
-				val.value :
-				null;
-};
-
-Sizzle.escape = function( sel ) {
-	return (sel + "").replace( rcssescape, fcssescape );
-};
-
-Sizzle.error = function( msg ) {
-	throw new Error( "Syntax error, unrecognized expression: " + msg );
-};
-
-/**
- * Document sorting and removing duplicates
- * @param {ArrayLike} results
- */
-Sizzle.uniqueSort = function( results ) {
-	var elem,
-		duplicates = [],
-		j = 0,
-		i = 0;
-
-	// Unless we *know* we can detect duplicates, assume their presence
-	hasDuplicate = !support.detectDuplicates;
-	sortInput = !support.sortStable && results.slice( 0 );
-	results.sort( sortOrder );
-
-	if ( hasDuplicate ) {
-		while ( (elem = results[i++]) ) {
-			if ( elem === results[ i ] ) {
-				j = duplicates.push( i );
-			}
-		}
-		while ( j-- ) {
-			results.splice( duplicates[ j ], 1 );
-		}
-	}
-
-	// Clear input after sorting to release objects
-	// See https://github.com/jquery/sizzle/pull/225
-	sortInput = null;
-
-	return results;
-};
-
-/**
- * Utility function for retrieving the text value of an array of DOM nodes
- * @param {Array|Element} elem
- */
-getText = Sizzle.getText = function( elem ) {
-	var node,
-		ret = "",
-		i = 0,
-		nodeType = elem.nodeType;
-
-	if ( !nodeType ) {
-		// If no nodeType, this is expected to be an array
-		while ( (node = elem[i++]) ) {
-			// Do not traverse comment nodes
-			ret += getText( node );
-		}
-	} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
-		// Use textContent for elements
-		// innerText usage removed for consistency of new lines (jQuery #11153)
-		if ( typeof elem.textContent === "string" ) {
-			return elem.textContent;
-		} else {
-			// Traverse its children
-			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
-				ret += getText( elem );
-			}
-		}
-	} else if ( nodeType === 3 || nodeType === 4 ) {
-		return elem.nodeValue;
-	}
-	// Do not include comment or processing instruction nodes
-
-	return ret;
-};
-
-Expr = Sizzle.selectors = {
-
-	// Can be adjusted by the user
-	cacheLength: 50,
-
-	createPseudo: markFunction,
-
-	match: matchExpr,
-
-	attrHandle: {},
-
-	find: {},
-
-	relative: {
-		">": { dir: "parentNode", first: true },
-		" ": { dir: "parentNode" },
-		"+": { dir: "previousSibling", first: true },
-		"~": { dir: "previousSibling" }
-	},
-
-	preFilter: {
-		"ATTR": function( match ) {
-			match[1] = match[1].replace( runescape, funescape );
-
-			// Move the given value to match[3] whether quoted or unquoted
-			match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );
-
-			if ( match[2] === "~=" ) {
-				match[3] = " " + match[3] + " ";
-			}
-
-			return match.slice( 0, 4 );
-		},
-
-		"CHILD": function( match ) {
-			/* matches from matchExpr["CHILD"]
-				1 type (only|nth|...)
-				2 what (child|of-type)
-				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
-				4 xn-component of xn+y argument ([+-]?\d*n|)
-				5 sign of xn-component
-				6 x of xn-component
-				7 sign of y-component
-				8 y of y-component
-			*/
-			match[1] = match[1].toLowerCase();
-
-			if ( match[1].slice( 0, 3 ) === "nth" ) {
-				// nth-* requires argument
-				if ( !match[3] ) {
-					Sizzle.error( match[0] );
-				}
-
-				// numeric x and y parameters for Expr.filter.CHILD
-				// remember that false/true cast respectively to 0/1
-				match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
-				match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
-
-			// other types prohibit arguments
-			} else if ( match[3] ) {
-				Sizzle.error( match[0] );
-			}
-
-			return match;
-		},
-
-		"PSEUDO": function( match ) {
-			var excess,
-				unquoted = !match[6] && match[2];
-
-			if ( matchExpr["CHILD"].test( match[0] ) ) {
-				return null;
-			}
-
-			// Accept quoted arguments as-is
-			if ( match[3] ) {
-				match[2] = match[4] || match[5] || "";
-
-			// Strip excess characters from unquoted arguments
-			} else if ( unquoted && rpseudo.test( unquoted ) &&
-				// Get excess from tokenize (recursively)
-				(excess = tokenize( unquoted, true )) &&
-				// advance to the next closing parenthesis
-				(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
-
-				// excess is a negative index
-				match[0] = match[0].slice( 0, excess );
-				match[2] = unquoted.slice( 0, excess );
-			}
-
-			// Return only captures needed by the pseudo filter method (type and argument)
-			return match.slice( 0, 3 );
-		}
-	},
-
-	filter: {
-
-		"TAG": function( nodeNameSelector ) {
-			var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
-			return nodeNameSelector === "*" ?
-				function() { return true; } :
-				function( elem ) {
-					return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
-				};
-		},
-
-		"CLASS": function( className ) {
-			var pattern = classCache[ className + " " ];
-
-			return pattern ||
-				(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
-				classCache( className, function( elem ) {
-					return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
-				});
-		},
-
-		"ATTR": function( name, operator, check ) {
-			return function( elem ) {
-				var result = Sizzle.attr( elem, name );
-
-				if ( result == null ) {
-					return operator === "!=";
-				}
-				if ( !operator ) {
-					return true;
-				}
-
-				result += "";
-
-				return operator === "=" ? result === check :
-					operator === "!=" ? result !== check :
-					operator === "^=" ? check && result.indexOf( check ) === 0 :
-					operator === "*=" ? check && result.indexOf( check ) > -1 :
-					operator === "$=" ? check && result.slice( -check.length ) === check :
-					operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
-					operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
-					false;
-			};
-		},
-
-		"CHILD": function( type, what, argument, first, last ) {
-			var simple = type.slice( 0, 3 ) !== "nth",
-				forward = type.slice( -4 ) !== "last",
-				ofType = what === "of-type";
-
-			return first === 1 && last === 0 ?
-
-				// Shortcut for :nth-*(n)
-				function( elem ) {
-					return !!elem.parentNode;
-				} :
-
-				function( elem, context, xml ) {
-					var cache, uniqueCache, outerCache, node, nodeIndex, start,
-						dir = simple !== forward ? "nextSibling" : "previousSibling",
-						parent = elem.parentNode,
-						name = ofType && elem.nodeName.toLowerCase(),
-						useCache = !xml && !ofType,
-						diff = false;
-
-					if ( parent ) {
-
-						// :(first|last|only)-(child|of-type)
-						if ( simple ) {
-							while ( dir ) {
-								node = elem;
-								while ( (node = node[ dir ]) ) {
-									if ( ofType ?
-										node.nodeName.toLowerCase() === name :
-										node.nodeType === 1 ) {
-
-										return false;
-									}
-								}
-								// Reverse direction for :only-* (if we haven't yet done so)
-								start = dir = type === "only" && !start && "nextSibling";
-							}
-							return true;
-						}
-
-						start = [ forward ? parent.firstChild : parent.lastChild ];
-
-						// non-xml :nth-child(...) stores cache data on `parent`
-						if ( forward && useCache ) {
-
-							// Seek `elem` from a previously-cached index
-
-							// ...in a gzip-friendly way
-							node = parent;
-							outerCache = node[ expando ] || (node[ expando ] = {});
-
-							// Support: IE <9 only
-							// Defend against cloned attroperties (jQuery gh-1709)
-							uniqueCache = outerCache[ node.uniqueID ] ||
-								(outerCache[ node.uniqueID ] = {});
-
-							cache = uniqueCache[ type ] || [];
-							nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
-							diff = nodeIndex && cache[ 2 ];
-							node = nodeIndex && parent.childNodes[ nodeIndex ];
-
-							while ( (node = ++nodeIndex && node && node[ dir ] ||
-
-								// Fallback to seeking `elem` from the start
-								(diff = nodeIndex = 0) || start.pop()) ) {
-
-								// When found, cache indexes on `parent` and break
-								if ( node.nodeType === 1 && ++diff && node === elem ) {
-									uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
-									break;
-								}
-							}
-
-						} else {
-							// Use previously-cached element index if available
-							if ( useCache ) {
-								// ...in a gzip-friendly way
-								node = elem;
-								outerCache = node[ expando ] || (node[ expando ] = {});
-
-								// Support: IE <9 only
-								// Defend against cloned attroperties (jQuery gh-1709)
-								uniqueCache = outerCache[ node.uniqueID ] ||
-									(outerCache[ node.uniqueID ] = {});
-
-								cache = uniqueCache[ type ] || [];
-								nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
-								diff = nodeIndex;
-							}
-
-							// xml :nth-child(...)
-							// or :nth-last-child(...) or :nth(-last)?-of-type(...)
-							if ( diff === false ) {
-								// Use the same loop as above to seek `elem` from the start
-								while ( (node = ++nodeIndex && node && node[ dir ] ||
-									(diff = nodeIndex = 0) || start.pop()) ) {
-
-									if ( ( ofType ?
-										node.nodeName.toLowerCase() === name :
-										node.nodeType === 1 ) &&
-										++diff ) {
-
-										// Cache the index of each encountered element
-										if ( useCache ) {
-											outerCache = node[ expando ] || (node[ expando ] = {});
-
-											// Support: IE <9 only
-											// Defend against cloned attroperties (jQuery gh-1709)
-											uniqueCache = outerCache[ node.uniqueID ] ||
-												(outerCache[ node.uniqueID ] = {});
-
-											uniqueCache[ type ] = [ dirruns, diff ];
-										}
-
-										if ( node === elem ) {
-											break;
-										}
-									}
-								}
-							}
-						}
-
-						// Incorporate the offset, then check against cycle size
-						diff -= last;
-						return diff === first || ( diff % first === 0 && diff / first >= 0 );
-					}
-				};
-		},
-
-		"PSEUDO": function( pseudo, argument ) {
-			// pseudo-class names are case-insensitive
-			// http://www.w3.org/TR/selectors/#pseudo-classes
-			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
-			// Remember that setFilters inherits from pseudos
-			var args,
-				fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
-					Sizzle.error( "unsupported pseudo: " + pseudo );
-
-			// The user may use createPseudo to indicate that
-			// arguments are needed to create the filter function
-			// just as Sizzle does
-			if ( fn[ expando ] ) {
-				return fn( argument );
-			}
-
-			// But maintain support for old signatures
-			if ( fn.length > 1 ) {
-				args = [ pseudo, pseudo, "", argument ];
-				return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
-					markFunction(function( seed, matches ) {
-						var idx,
-							matched = fn( seed, argument ),
-							i = matched.length;
-						while ( i-- ) {
-							idx = indexOf( seed, matched[i] );
-							seed[ idx ] = !( matches[ idx ] = matched[i] );
-						}
-					}) :
-					function( elem ) {
-						return fn( elem, 0, args );
-					};
-			}
-
-			return fn;
-		}
-	},
-
-	pseudos: {
-		// Potentially complex pseudos
-		"not": markFunction(function( selector ) {
-			// Trim the selector passed to compile
-			// to avoid treating leading and trailing
-			// spaces as combinators
-			var input = [],
-				results = [],
-				matcher = compile( selector.replace( rtrim, "$1" ) );
-
-			return matcher[ expando ] ?
-				markFunction(function( seed, matches, context, xml ) {
-					var elem,
-						unmatched = matcher( seed, null, xml, [] ),
-						i = seed.length;
-
-					// Match elements unmatched by `matcher`
-					while ( i-- ) {
-						if ( (elem = unmatched[i]) ) {
-							seed[i] = !(matches[i] = elem);
-						}
-					}
-				}) :
-				function( elem, context, xml ) {
-					input[0] = elem;
-					matcher( input, null, xml, results );
-					// Don't keep the element (issue #299)
-					input[0] = null;
-					return !results.pop();
-				};
-		}),
-
-		"has": markFunction(function( selector ) {
-			return function( elem ) {
-				return Sizzle( selector, elem ).length > 0;
-			};
-		}),
-
-		"contains": markFunction(function( text ) {
-			text = text.replace( runescape, funescape );
-			return function( elem ) {
-				return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1;
-			};
-		}),
-
-		// "Whether an element is represented by a :lang() selector
-		// is based solely on the element's language value
-		// being equal to the identifier C,
-		// or beginning with the identifier C immediately followed by "-".
-		// The matching of C against the element's language value is performed case-insensitively.
-		// The identifier C does not have to be a valid language name."
-		// http://www.w3.org/TR/selectors/#lang-pseudo
-		"lang": markFunction( function( lang ) {
-			// lang value must be a valid identifier
-			if ( !ridentifier.test(lang || "") ) {
-				Sizzle.error( "unsupported lang: " + lang );
-			}
-			lang = lang.replace( runescape, funescape ).toLowerCase();
-			return function( elem ) {
-				var elemLang;
-				do {
-					if ( (elemLang = documentIsHTML ?
-						elem.lang :
-						elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
-
-						elemLang = elemLang.toLowerCase();
-						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
-					}
-				} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
-				return false;
-			};
-		}),
-
-		// Miscellaneous
-		"target": function( elem ) {
-			var hash = window.location && window.location.hash;
-			return hash && hash.slice( 1 ) === elem.id;
-		},
-
-		"root": function( elem ) {
-			return elem === docElem;
-		},
-
-		"focus": function( elem ) {
-			return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
-		},
-
-		// Boolean properties
-		"enabled": createDisabledPseudo( false ),
-		"disabled": createDisabledPseudo( true ),
-
-		"checked": function( elem ) {
-			// In CSS3, :checked should return both checked and selected elements
-			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
-			var nodeName = elem.nodeName.toLowerCase();
-			return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
-		},
-
-		"selected": function( elem ) {
-			// Accessing this property makes selected-by-default
-			// options in Safari work properly
-			if ( elem.parentNode ) {
-				elem.parentNode.selectedIndex;
-			}
-
-			return elem.selected === true;
-		},
-
-		// Contents
-		"empty": function( elem ) {
-			// http://www.w3.org/TR/selectors/#empty-pseudo
-			// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
-			//   but not by others (comment: 8; processing instruction: 7; etc.)
-			// nodeType < 6 works because attributes (2) do not appear as children
-			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
-				if ( elem.nodeType < 6 ) {
-					return false;
-				}
-			}
-			return true;
-		},
-
-		"parent": function( elem ) {
-			return !Expr.pseudos["empty"]( elem );
-		},
-
-		// Element/input types
-		"header": function( elem ) {
-			return rheader.test( elem.nodeName );
-		},
-
-		"input": function( elem ) {
-			return rinputs.test( elem.nodeName );
-		},
-
-		"button": function( elem ) {
-			var name = elem.nodeName.toLowerCase();
-			return name === "input" && elem.type === "button" || name === "button";
-		},
-
-		"text": function( elem ) {
-			var attr;
-			return elem.nodeName.toLowerCase() === "input" &&
-				elem.type === "text" &&
-
-				// Support: IE<8
-				// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
-				( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
-		},
-
-		// Position-in-collection
-		"first": createPositionalPseudo(function() {
-			return [ 0 ];
-		}),
-
-		"last": createPositionalPseudo(function( matchIndexes, length ) {
-			return [ length - 1 ];
-		}),
-
-		"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
-			return [ argument < 0 ? argument + length : argument ];
-		}),
-
-		"even": createPositionalPseudo(function( matchIndexes, length ) {
-			var i = 0;
-			for ( ; i < length; i += 2 ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		}),
-
-		"odd": createPositionalPseudo(function( matchIndexes, length ) {
-			var i = 1;
-			for ( ; i < length; i += 2 ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		}),
-
-		"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
-			var i = argument < 0 ?
-				argument + length :
-				argument > length ?
-					length :
-					argument;
-			for ( ; --i >= 0; ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		}),
-
-		"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
-			var i = argument < 0 ? argument + length : argument;
-			for ( ; ++i < length; ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		})
-	}
-};
-
-Expr.pseudos["nth"] = Expr.pseudos["eq"];
-
-// Add button/input type pseudos
-for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
-	Expr.pseudos[ i ] = createInputPseudo( i );
-}
-for ( i in { submit: true, reset: true } ) {
-	Expr.pseudos[ i ] = createButtonPseudo( i );
-}
-
-// Easy API for creating new setFilters
-function setFilters() {}
-setFilters.prototype = Expr.filters = Expr.pseudos;
-Expr.setFilters = new setFilters();
-
-tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
-	var matched, match, tokens, type,
-		soFar, groups, preFilters,
-		cached = tokenCache[ selector + " " ];
-
-	if ( cached ) {
-		return parseOnly ? 0 : cached.slice( 0 );
-	}
-
-	soFar = selector;
-	groups = [];
-	preFilters = Expr.preFilter;
-
-	while ( soFar ) {
-
-		// Comma and first run
-		if ( !matched || (match = rcomma.exec( soFar )) ) {
-			if ( match ) {
-				// Don't consume trailing commas as valid
-				soFar = soFar.slice( match[0].length ) || soFar;
-			}
-			groups.push( (tokens = []) );
-		}
-
-		matched = false;
-
-		// Combinators
-		if ( (match = rcombinators.exec( soFar )) ) {
-			matched = match.shift();
-			tokens.push({
-				value: matched,
-				// Cast descendant combinators to space
-				type: match[0].replace( rtrim, " " )
-			});
-			soFar = soFar.slice( matched.length );
-		}
-
-		// Filters
-		for ( type in Expr.filter ) {
-			if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
-				(match = preFilters[ type ]( match ))) ) {
-				matched = match.shift();
-				tokens.push({
-					value: matched,
-					type: type,
-					matches: match
-				});
-				soFar = soFar.slice( matched.length );
-			}
-		}
-
-		if ( !matched ) {
-			break;
-		}
-	}
-
-	// Return the length of the invalid excess
-	// if we're just parsing
-	// Otherwise, throw an error or return tokens
-	return parseOnly ?
-		soFar.length :
-		soFar ?
-			Sizzle.error( selector ) :
-			// Cache the tokens
-			tokenCache( selector, groups ).slice( 0 );
-};
-
-function toSelector( tokens ) {
-	var i = 0,
-		len = tokens.length,
-		selector = "";
-	for ( ; i < len; i++ ) {
-		selector += tokens[i].value;
-	}
-	return selector;
-}
-
-function addCombinator( matcher, combinator, base ) {
-	var dir = combinator.dir,
-		skip = combinator.next,
-		key = skip || dir,
-		checkNonElements = base && key === "parentNode",
-		doneName = done++;
-
-	return combinator.first ?
-		// Check against closest ancestor/preceding element
-		function( elem, context, xml ) {
-			while ( (elem = elem[ dir ]) ) {
-				if ( elem.nodeType === 1 || checkNonElements ) {
-					return matcher( elem, context, xml );
-				}
-			}
-			return false;
-		} :
-
-		// Check against all ancestor/preceding elements
-		function( elem, context, xml ) {
-			var oldCache, uniqueCache, outerCache,
-				newCache = [ dirruns, doneName ];
-
-			// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
-			if ( xml ) {
-				while ( (elem = elem[ dir ]) ) {
-					if ( elem.nodeType === 1 || checkNonElements ) {
-						if ( matcher( elem, context, xml ) ) {
-							return true;
-						}
-					}
-				}
-			} else {
-				while ( (elem = elem[ dir ]) ) {
-					if ( elem.nodeType === 1 || checkNonElements ) {
-						outerCache = elem[ expando ] || (elem[ expando ] = {});
-
-						// Support: IE <9 only
-						// Defend against cloned attroperties (jQuery gh-1709)
-						uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});
-
-						if ( skip && skip === elem.nodeName.toLowerCase() ) {
-							elem = elem[ dir ] || elem;
-						} else if ( (oldCache = uniqueCache[ key ]) &&
-							oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
-
-							// Assign to newCache so results back-propagate to previous elements
-							return (newCache[ 2 ] = oldCache[ 2 ]);
-						} else {
-							// Reuse newcache so results back-propagate to previous elements
-							uniqueCache[ key ] = newCache;
-
-							// A match means we're done; a fail means we have to keep checking
-							if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
-								return true;
-							}
-						}
-					}
-				}
-			}
-			return false;
-		};
-}
-
-function elementMatcher( matchers ) {
-	return matchers.length > 1 ?
-		function( elem, context, xml ) {
-			var i = matchers.length;
-			while ( i-- ) {
-				if ( !matchers[i]( elem, context, xml ) ) {
-					return false;
-				}
-			}
-			return true;
-		} :
-		matchers[0];
-}
-
-function multipleContexts( selector, contexts, results ) {
-	var i = 0,
-		len = contexts.length;
-	for ( ; i < len; i++ ) {
-		Sizzle( selector, contexts[i], results );
-	}
-	return results;
-}
-
-function condense( unmatched, map, filter, context, xml ) {
-	var elem,
-		newUnmatched = [],
-		i = 0,
-		len = unmatched.length,
-		mapped = map != null;
-
-	for ( ; i < len; i++ ) {
-		if ( (elem = unmatched[i]) ) {
-			if ( !filter || filter( elem, context, xml ) ) {
-				newUnmatched.push( elem );
-				if ( mapped ) {
-					map.push( i );
-				}
-			}
-		}
-	}
-
-	return newUnmatched;
-}
-
-function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
-	if ( postFilter && !postFilter[ expando ] ) {
-		postFilter = setMatcher( postFilter );
-	}
-	if ( postFinder && !postFinder[ expando ] ) {
-		postFinder = setMatcher( postFinder, postSelector );
-	}
-	return markFunction(function( seed, results, context, xml ) {
-		var temp, i, elem,
-			preMap = [],
-			postMap = [],
-			preexisting = results.length,
-
-			// Get initial elements from seed or context
-			elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
-
-			// Prefilter to get matcher input, preserving a map for seed-results synchronization
-			matcherIn = preFilter && ( seed || !selector ) ?
-				condense( elems, preMap, preFilter, context, xml ) :
-				elems,
-
-			matcherOut = matcher ?
-				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
-				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
-
-					// ...intermediate processing is necessary
-					[] :
-
-					// ...otherwise use results directly
-					results :
-				matcherIn;
-
-		// Find primary matches
-		if ( matcher ) {
-			matcher( matcherIn, matcherOut, context, xml );
-		}
-
-		// Apply postFilter
-		if ( postFilter ) {
-			temp = condense( matcherOut, postMap );
-			postFilter( temp, [], context, xml );
-
-			// Un-match failing elements by moving them back to matcherIn
-			i = temp.length;
-			while ( i-- ) {
-				if ( (elem = temp[i]) ) {
-					matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
-				}
-			}
-		}
-
-		if ( seed ) {
-			if ( postFinder || preFilter ) {
-				if ( postFinder ) {
-					// Get the final matcherOut by condensing this intermediate into postFinder contexts
-					temp = [];
-					i = matcherOut.length;
-					while ( i-- ) {
-						if ( (elem = matcherOut[i]) ) {
-							// Restore matcherIn since elem is not yet a final match
-							temp.push( (matcherIn[i] = elem) );
-						}
-					}
-					postFinder( null, (matcherOut = []), temp, xml );
-				}
-
-				// Move matched elements from seed to results to keep them synchronized
-				i = matcherOut.length;
-				while ( i-- ) {
-					if ( (elem = matcherOut[i]) &&
-						(temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {
-
-						seed[temp] = !(results[temp] = elem);
-					}
-				}
-			}
-
-		// Add elements to results, through postFinder if defined
-		} else {
-			matcherOut = condense(
-				matcherOut === results ?
-					matcherOut.splice( preexisting, matcherOut.length ) :
-					matcherOut
-			);
-			if ( postFinder ) {
-				postFinder( null, results, matcherOut, xml );
-			} else {
-				push.apply( results, matcherOut );
-			}
-		}
-	});
-}
-
-function matcherFromTokens( tokens ) {
-	var checkContext, matcher, j,
-		len = tokens.length,
-		leadingRelative = Expr.relative[ tokens[0].type ],
-		implicitRelative = leadingRelative || Expr.relative[" "],
-		i = leadingRelative ? 1 : 0,
-
-		// The foundational matcher ensures that elements are reachable from top-level context(s)
-		matchContext = addCombinator( function( elem ) {
-			return elem === checkContext;
-		}, implicitRelative, true ),
-		matchAnyContext = addCombinator( function( elem ) {
-			return indexOf( checkContext, elem ) > -1;
-		}, implicitRelative, true ),
-		matchers = [ function( elem, context, xml ) {
-			var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
-				(checkContext = context).nodeType ?
-					matchContext( elem, context, xml ) :
-					matchAnyContext( elem, context, xml ) );
-			// Avoid hanging onto element (issue #299)
-			checkContext = null;
-			return ret;
-		} ];
-
-	for ( ; i < len; i++ ) {
-		if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
-			matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
-		} else {
-			matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
-
-			// Return special upon seeing a positional matcher
-			if ( matcher[ expando ] ) {
-				// Find the next relative operator (if any) for proper handling
-				j = ++i;
-				for ( ; j < len; j++ ) {
-					if ( Expr.relative[ tokens[j].type ] ) {
-						break;
-					}
-				}
-				return setMatcher(
-					i > 1 && elementMatcher( matchers ),
-					i > 1 && toSelector(
-						// If the preceding token was a descendant combinator, insert an implicit any-element `*`
-						tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
-					).replace( rtrim, "$1" ),
-					matcher,
-					i < j && matcherFromTokens( tokens.slice( i, j ) ),
-					j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
-					j < len && toSelector( tokens )
-				);
-			}
-			matchers.push( matcher );
-		}
-	}
-
-	return elementMatcher( matchers );
-}
-
-function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
-	var bySet = setMatchers.length > 0,
-		byElement = elementMatchers.length > 0,
-		superMatcher = function( seed, context, xml, results, outermost ) {
-			var elem, j, matcher,
-				matchedCount = 0,
-				i = "0",
-				unmatched = seed && [],
-				setMatched = [],
-				contextBackup = outermostContext,
-				// We must always have either seed elements or outermost context
-				elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
-				// Use integer dirruns iff this is the outermost matcher
-				dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
-				len = elems.length;
-
-			if ( outermost ) {
-				outermostContext = context === document || context || outermost;
-			}
-
-			// Add elements passing elementMatchers directly to results
-			// Support: IE<9, Safari
-			// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
-			for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
-				if ( byElement && elem ) {
-					j = 0;
-					if ( !context && elem.ownerDocument !== document ) {
-						setDocument( elem );
-						xml = !documentIsHTML;
-					}
-					while ( (matcher = elementMatchers[j++]) ) {
-						if ( matcher( elem, context || document, xml) ) {
-							results.push( elem );
-							break;
-						}
-					}
-					if ( outermost ) {
-						dirruns = dirrunsUnique;
-					}
-				}
-
-				// Track unmatched elements for set filters
-				if ( bySet ) {
-					// They will have gone through all possible matchers
-					if ( (elem = !matcher && elem) ) {
-						matchedCount--;
-					}
-
-					// Lengthen the array for every element, matched or not
-					if ( seed ) {
-						unmatched.push( elem );
-					}
-				}
-			}
-
-			// `i` is now the count of elements visited above, and adding it to `matchedCount`
-			// makes the latter nonnegative.
-			matchedCount += i;
-
-			// Apply set filters to unmatched elements
-			// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
-			// equals `i`), unless we didn't visit _any_ elements in the above loop because we have
-			// no element matchers and no seed.
-			// Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
-			// case, which will result in a "00" `matchedCount` that differs from `i` but is also
-			// numerically zero.
-			if ( bySet && i !== matchedCount ) {
-				j = 0;
-				while ( (matcher = setMatchers[j++]) ) {
-					matcher( unmatched, setMatched, context, xml );
-				}
-
-				if ( seed ) {
-					// Reintegrate element matches to eliminate the need for sorting
-					if ( matchedCount > 0 ) {
-						while ( i-- ) {
-							if ( !(unmatched[i] || setMatched[i]) ) {
-								setMatched[i] = pop.call( results );
-							}
-						}
-					}
-
-					// Discard index placeholder values to get only actual matches
-					setMatched = condense( setMatched );
-				}
-
-				// Add matches to results
-				push.apply( results, setMatched );
-
-				// Seedless set matches succeeding multiple successful matchers stipulate sorting
-				if ( outermost && !seed && setMatched.length > 0 &&
-					( matchedCount + setMatchers.length ) > 1 ) {
-
-					Sizzle.uniqueSort( results );
-				}
-			}
-
-			// Override manipulation of globals by nested matchers
-			if ( outermost ) {
-				dirruns = dirrunsUnique;
-				outermostContext = contextBackup;
-			}
-
-			return unmatched;
-		};
-
-	return bySet ?
-		markFunction( superMatcher ) :
-		superMatcher;
-}
-
-compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
-	var i,
-		setMatchers = [],
-		elementMatchers = [],
-		cached = compilerCache[ selector + " " ];
-
-	if ( !cached ) {
-		// Generate a function of recursive functions that can be used to check each element
-		if ( !match ) {
-			match = tokenize( selector );
-		}
-		i = match.length;
-		while ( i-- ) {
-			cached = matcherFromTokens( match[i] );
-			if ( cached[ expando ] ) {
-				setMatchers.push( cached );
-			} else {
-				elementMatchers.push( cached );
-			}
-		}
-
-		// Cache the compiled function
-		cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
-
-		// Save selector and tokenization
-		cached.selector = selector;
-	}
-	return cached;
-};
-
-/**
- * A low-level selection function that works with Sizzle's compiled
- *  selector functions
- * @param {String|Function} selector A selector or a pre-compiled
- *  selector function built with Sizzle.compile
- * @param {Element} context
- * @param {Array} [results]
- * @param {Array} [seed] A set of elements to match against
- */
-select = Sizzle.select = function( selector, context, results, seed ) {
-	var i, tokens, token, type, find,
-		compiled = typeof selector === "function" && selector,
-		match = !seed && tokenize( (selector = compiled.selector || selector) );
-
-	results = results || [];
-
-	// Try to minimize operations if there is only one selector in the list and no seed
-	// (the latter of which guarantees us context)
-	if ( match.length === 1 ) {
-
-		// Reduce context if the leading compound selector is an ID
-		tokens = match[0] = match[0].slice( 0 );
-		if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
-				context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) {
-
-			context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
-			if ( !context ) {
-				return results;
-
-			// Precompiled matchers will still verify ancestry, so step up a level
-			} else if ( compiled ) {
-				context = context.parentNode;
-			}
-
-			selector = selector.slice( tokens.shift().value.length );
-		}
-
-		// Fetch a seed set for right-to-left matching
-		i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
-		while ( i-- ) {
-			token = tokens[i];
-
-			// Abort if we hit a combinator
-			if ( Expr.relative[ (type = token.type) ] ) {
-				break;
-			}
-			if ( (find = Expr.find[ type ]) ) {
-				// Search, expanding context for leading sibling combinators
-				if ( (seed = find(
-					token.matches[0].replace( runescape, funescape ),
-					rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
-				)) ) {
-
-					// If seed is empty or no tokens remain, we can return early
-					tokens.splice( i, 1 );
-					selector = seed.length && toSelector( tokens );
-					if ( !selector ) {
-						push.apply( results, seed );
-						return results;
-					}
-
-					break;
-				}
-			}
-		}
-	}
-
-	// Compile and execute a filtering function if one is not provided
-	// Provide `match` to avoid retokenization if we modified the selector above
-	( compiled || compile( selector, match ) )(
-		seed,
-		context,
-		!documentIsHTML,
-		results,
-		!context || rsibling.test( selector ) && testContext( context.parentNode ) || context
-	);
-	return results;
-};
-
-// One-time assignments
-
-// Sort stability
-support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
-
-// Support: Chrome 14-35+
-// Always assume duplicates if they aren't passed to the comparison function
-support.detectDuplicates = !!hasDuplicate;
-
-// Initialize against the default document
-setDocument();
-
-// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
-// Detached nodes confoundingly follow *each other*
-support.sortDetached = assert(function( el ) {
-	// Should return 1, but returns 4 (following)
-	return el.compareDocumentPosition( document.createElement("fieldset") ) & 1;
-});
-
-// Support: IE<8
-// Prevent attribute/property "interpolation"
-// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
-if ( !assert(function( el ) {
-	el.innerHTML = "<a href='#'></a>";
-	return el.firstChild.getAttribute("href") === "#" ;
-}) ) {
-	addHandle( "type|href|height|width", function( elem, name, isXML ) {
-		if ( !isXML ) {
-			return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
-		}
-	});
-}
-
-// Support: IE<9
-// Use defaultValue in place of getAttribute("value")
-if ( !support.attributes || !assert(function( el ) {
-	el.innerHTML = "<input/>";
-	el.firstChild.setAttribute( "value", "" );
-	return el.firstChild.getAttribute( "value" ) === "";
-}) ) {
-	addHandle( "value", function( elem, name, isXML ) {
-		if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
-			return elem.defaultValue;
-		}
-	});
-}
-
-// Support: IE<9
-// Use getAttributeNode to fetch booleans when getAttribute lies
-if ( !assert(function( el ) {
-	return el.getAttribute("disabled") == null;
-}) ) {
-	addHandle( booleans, function( elem, name, isXML ) {
-		var val;
-		if ( !isXML ) {
-			return elem[ name ] === true ? name.toLowerCase() :
-					(val = elem.getAttributeNode( name )) && val.specified ?
-					val.value :
-				null;
-		}
-	});
-}
-
-return Sizzle;
-
-})( window );
-
-
-
-jQuery.find = Sizzle;
-jQuery.expr = Sizzle.selectors;
-
-// Deprecated
-jQuery.expr[ ":" ] = jQuery.expr.pseudos;
-jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
-jQuery.text = Sizzle.getText;
-jQuery.isXMLDoc = Sizzle.isXML;
-jQuery.contains = Sizzle.contains;
-jQuery.escapeSelector = Sizzle.escape;
-
-
-
-
-var dir = function( elem, dir, until ) {
-	var matched = [],
-		truncate = until !== undefined;
-
-	while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
-		if ( elem.nodeType === 1 ) {
-			if ( truncate && jQuery( elem ).is( until ) ) {
-				break;
-			}
-			matched.push( elem );
-		}
-	}
-	return matched;
-};
-
-
-var siblings = function( n, elem ) {
-	var matched = [];
-
-	for ( ; n; n = n.nextSibling ) {
-		if ( n.nodeType === 1 && n !== elem ) {
-			matched.push( n );
-		}
-	}
-
-	return matched;
-};
-
-
-var rneedsContext = jQuery.expr.match.needsContext;
-
-
-
-function nodeName( elem, name ) {
-
-  return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
-
-};
-var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );
-
-
-
-// Implement the identical functionality for filter and not
-function winnow( elements, qualifier, not ) {
-	if ( isFunction( qualifier ) ) {
-		return jQuery.grep( elements, function( elem, i ) {
-			return !!qualifier.call( elem, i, elem ) !== not;
-		} );
-	}
-
-	// Single element
-	if ( qualifier.nodeType ) {
-		return jQuery.grep( elements, function( elem ) {
-			return ( elem === qualifier ) !== not;
-		} );
-	}
-
-	// Arraylike of elements (jQuery, arguments, Array)
-	if ( typeof qualifier !== "string" ) {
-		return jQuery.grep( elements, function( elem ) {
-			return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
-		} );
-	}
-
-	// Filtered directly for both simple and complex selectors
-	return jQuery.filter( qualifier, elements, not );
-}
-
-jQuery.filter = function( expr, elems, not ) {
-	var elem = elems[ 0 ];
-
-	if ( not ) {
-		expr = ":not(" + expr + ")";
-	}
-
-	if ( elems.length === 1 && elem.nodeType === 1 ) {
-		return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
-	}
-
-	return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
-		return elem.nodeType === 1;
-	} ) );
-};
-
-jQuery.fn.extend( {
-	find: function( selector ) {
-		var i, ret,
-			len = this.length,
-			self = this;
-
-		if ( typeof selector !== "string" ) {
-			return this.pushStack( jQuery( selector ).filter( function() {
-				for ( i = 0; i < len; i++ ) {
-					if ( jQuery.contains( self[ i ], this ) ) {
-						return true;
-					}
-				}
-			} ) );
-		}
-
-		ret = this.pushStack( [] );
-
-		for ( i = 0; i < len; i++ ) {
-			jQuery.find( selector, self[ i ], ret );
-		}
-
-		return len > 1 ? jQuery.uniqueSort( ret ) : ret;
-	},
-	filter: function( selector ) {
-		return this.pushStack( winnow( this, selector || [], false ) );
-	},
-	not: function( selector ) {
-		return this.pushStack( winnow( this, selector || [], true ) );
-	},
-	is: function( selector ) {
-		return !!winnow(
-			this,
-
-			// If this is a positional/relative selector, check membership in the returned set
-			// so $("p:first").is("p:last") won't return true for a doc with two "p".
-			typeof selector === "string" && rneedsContext.test( selector ) ?
-				jQuery( selector ) :
-				selector || [],
-			false
-		).length;
-	}
-} );
-
-
-// Initialize a jQuery object
-
-
-// A central reference to the root jQuery(document)
-var rootjQuery,
-
-	// A simple way to check for HTML strings
-	// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
-	// Strict HTML recognition (#11290: must start with <)
-	// Shortcut simple #id case for speed
-	rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,
-
-	init = jQuery.fn.init = function( selector, context, root ) {
-		var match, elem;
-
-		// HANDLE: $(""), $(null), $(undefined), $(false)
-		if ( !selector ) {
-			return this;
-		}
-
-		// Method init() accepts an alternate rootjQuery
-		// so migrate can support jQuery.sub (gh-2101)
-		root = root || rootjQuery;
-
-		// Handle HTML strings
-		if ( typeof selector === "string" ) {
-			if ( selector[ 0 ] === "<" &&
-				selector[ selector.length - 1 ] === ">" &&
-				selector.length >= 3 ) {
-
-				// Assume that strings that start and end with <> are HTML and skip the regex check
-				match = [ null, selector, null ];
-
-			} else {
-				match = rquickExpr.exec( selector );
-			}
-
-			// Match html or make sure no context is specified for #id
-			if ( match && ( match[ 1 ] || !context ) ) {
-
-				// HANDLE: $(html) -> $(array)
-				if ( match[ 1 ] ) {
-					context = context instanceof jQuery ? context[ 0 ] : context;
-
-					// Option to run scripts is true for back-compat
-					// Intentionally let the error be thrown if parseHTML is not present
-					jQuery.merge( this, jQuery.parseHTML(
-						match[ 1 ],
-						context && context.nodeType ? context.ownerDocument || context : document,
-						true
-					) );
-
-					// HANDLE: $(html, props)
-					if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
-						for ( match in context ) {
-
-							// Properties of context are called as methods if possible
-							if ( isFunction( this[ match ] ) ) {
-								this[ match ]( context[ match ] );
-
-							// ...and otherwise set as attributes
-							} else {
-								this.attr( match, context[ match ] );
-							}
-						}
-					}
-
-					return this;
-
-				// HANDLE: $(#id)
-				} else {
-					elem = document.getElementById( match[ 2 ] );
-
-					if ( elem ) {
-
-						// Inject the element directly into the jQuery object
-						this[ 0 ] = elem;
-						this.length = 1;
-					}
-					return this;
-				}
-
-			// HANDLE: $(expr, $(...))
-			} else if ( !context || context.jquery ) {
-				return ( context || root ).find( selector );
-
-			// HANDLE: $(expr, context)
-			// (which is just equivalent to: $(context).find(expr)
-			} else {
-				return this.constructor( context ).find( selector );
-			}
-
-		// HANDLE: $(DOMElement)
-		} else if ( selector.nodeType ) {
-			this[ 0 ] = selector;
-			this.length = 1;
-			return this;
-
-		// HANDLE: $(function)
-		// Shortcut for document ready
-		} else if ( isFunction( selector ) ) {
-			return root.ready !== undefined ?
-				root.ready( selector ) :
-
-				// Execute immediately if ready is not present
-				selector( jQuery );
-		}
-
-		return jQuery.makeArray( selector, this );
-	};
-
-// Give the init function the jQuery prototype for later instantiation
-init.prototype = jQuery.fn;
-
-// Initialize central reference
-rootjQuery = jQuery( document );
-
-
-var rparentsprev = /^(?:parents|prev(?:Until|All))/,
-
-	// Methods guaranteed to produce a unique set when starting from a unique set
-	guaranteedUnique = {
-		children: true,
-		contents: true,
-		next: true,
-		prev: true
-	};
-
-jQuery.fn.extend( {
-	has: function( target ) {
-		var targets = jQuery( target, this ),
-			l = targets.length;
-
-		return this.filter( function() {
-			var i = 0;
-			for ( ; i < l; i++ ) {
-				if ( jQuery.contains( this, targets[ i ] ) ) {
-					return true;
-				}
-			}
-		} );
-	},
-
-	closest: function( selectors, context ) {
-		var cur,
-			i = 0,
-			l = this.length,
-			matched = [],
-			targets = typeof selectors !== "string" && jQuery( selectors );
-
-		// Positional selectors never match, since there's no _selection_ context
-		if ( !rneedsContext.test( selectors ) ) {
-			for ( ; i < l; i++ ) {
-				for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {
-
-					// Always skip document fragments
-					if ( cur.nodeType < 11 && ( targets ?
-						targets.index( cur ) > -1 :
-
-						// Don't pass non-elements to Sizzle
-						cur.nodeType === 1 &&
-							jQuery.find.matchesSelector( cur, selectors ) ) ) {
-
-						matched.push( cur );
-						break;
-					}
-				}
-			}
-		}
-
-		return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
-	},
-
-	// Determine the position of an element within the set
-	index: function( elem ) {
-
-		// No argument, return index in parent
-		if ( !elem ) {
-			return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
-		}
-
-		// Index in selector
-		if ( typeof elem === "string" ) {
-			return indexOf.call( jQuery( elem ), this[ 0 ] );
-		}
-
-		// Locate the position of the desired element
-		return indexOf.call( this,
-
-			// If it receives a jQuery object, the first element is used
-			elem.jquery ? elem[ 0 ] : elem
-		);
-	},
-
-	add: function( selector, context ) {
-		return this.pushStack(
-			jQuery.uniqueSort(
-				jQuery.merge( this.get(), jQuery( selector, context ) )
-			)
-		);
-	},
-
-	addBack: function( selector ) {
-		return this.add( selector == null ?
-			this.prevObject : this.prevObject.filter( selector )
-		);
-	}
-} );
-
-function sibling( cur, dir ) {
-	while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
-	return cur;
-}
-
-jQuery.each( {
-	parent: function( elem ) {
-		var parent = elem.parentNode;
-		return parent && parent.nodeType !== 11 ? parent : null;
-	},
-	parents: function( elem ) {
-		return dir( elem, "parentNode" );
-	},
-	parentsUntil: function( elem, i, until ) {
-		return dir( elem, "parentNode", until );
-	},
-	next: function( elem ) {
-		return sibling( elem, "nextSibling" );
-	},
-	prev: function( elem ) {
-		return sibling( elem, "previousSibling" );
-	},
-	nextAll: function( elem ) {
-		return dir( elem, "nextSibling" );
-	},
-	prevAll: function( elem ) {
-		return dir( elem, "previousSibling" );
-	},
-	nextUntil: function( elem, i, until ) {
-		return dir( elem, "nextSibling", until );
-	},
-	prevUntil: function( elem, i, until ) {
-		return dir( elem, "previousSibling", until );
-	},
-	siblings: function( elem ) {
-		return siblings( ( elem.parentNode || {} ).firstChild, elem );
-	},
-	children: function( elem ) {
-		return siblings( elem.firstChild );
-	},
-	contents: function( elem ) {
-		if ( typeof elem.contentDocument !== "undefined" ) {
-			return elem.contentDocument;
-		}
-
-		// Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
-		// Treat the template element as a regular one in browsers that
-		// don't support it.
-		if ( nodeName( elem, "template" ) ) {
-			elem = elem.content || elem;
-		}
-
-		return jQuery.merge( [], elem.childNodes );
-	}
-}, function( name, fn ) {
-	jQuery.fn[ name ] = function( until, selector ) {
-		var matched = jQuery.map( this, fn, until );
-
-		if ( name.slice( -5 ) !== "Until" ) {
-			selector = until;
-		}
-
-		if ( selector && typeof selector === "string" ) {
-			matched = jQuery.filter( selector, matched );
-		}
-
-		if ( this.length > 1 ) {
-
-			// Remove duplicates
-			if ( !guaranteedUnique[ name ] ) {
-				jQuery.uniqueSort( matched );
-			}
-
-			// Reverse order for parents* and prev-derivatives
-			if ( rparentsprev.test( name ) ) {
-				matched.reverse();
-			}
-		}
-
-		return this.pushStack( matched );
-	};
-} );
-var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );
-
-
-
-// Convert String-formatted options into Object-formatted ones
-function createOptions( options ) {
-	var object = {};
-	jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
-		object[ flag ] = true;
-	} );
-	return object;
-}
-
-/*
- * Create a callback list using the following parameters:
- *
- *	options: an optional list of space-separated options that will change how
- *			the callback list behaves or a more traditional option object
- *
- * By default a callback list will act like an event callback list and can be
- * "fired" multiple times.
- *
- * Possible options:
- *
- *	once:			will ensure the callback list can only be fired once (like a Deferred)
- *
- *	memory:			will keep track of previous values and will call any callback added
- *					after the list has been fired right away with the latest "memorized"
- *					values (like a Deferred)
- *
- *	unique:			will ensure a callback can only be added once (no duplicate in the list)
- *
- *	stopOnFalse:	interrupt callings when a callback returns false
- *
- */
-jQuery.Callbacks = function( options ) {
-
-	// Convert options from String-formatted to Object-formatted if needed
-	// (we check in cache first)
-	options = typeof options === "string" ?
-		createOptions( options ) :
-		jQuery.extend( {}, options );
-
-	var // Flag to know if list is currently firing
-		firing,
-
-		// Last fire value for non-forgettable lists
-		memory,
-
-		// Flag to know if list was already fired
-		fired,
-
-		// Flag to prevent firing
-		locked,
-
-		// Actual callback list
-		list = [],
-
-		// Queue of execution data for repeatable lists
-		queue = [],
-
-		// Index of currently firing callback (modified by add/remove as needed)
-		firingIndex = -1,
-
-		// Fire callbacks
-		fire = function() {
-
-			// Enforce single-firing
-			locked = locked || options.once;
-
-			// Execute callbacks for all pending executions,
-			// respecting firingIndex overrides and runtime changes
-			fired = firing = true;
-			for ( ; queue.length; firingIndex = -1 ) {
-				memory = queue.shift();
-				while ( ++firingIndex < list.length ) {
-
-					// Run callback and check for early termination
-					if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
-						options.stopOnFalse ) {
-
-						// Jump to end and forget the data so .add doesn't re-fire
-						firingIndex = list.length;
-						memory = false;
-					}
-				}
-			}
-
-			// Forget the data if we're done with it
-			if ( !options.memory ) {
-				memory = false;
-			}
-
-			firing = false;
-
-			// Clean up if we're done firing for good
-			if ( locked ) {
-
-				// Keep an empty list if we have data for future add calls
-				if ( memory ) {
-					list = [];
-
-				// Otherwise, this object is spent
-				} else {
-					list = "";
-				}
-			}
-		},
-
-		// Actual Callbacks object
-		self = {
-
-			// Add a callback or a collection of callbacks to the list
-			add: function() {
-				if ( list ) {
-
-					// If we have memory from a past run, we should fire after adding
-					if ( memory && !firing ) {
-						firingIndex = list.length - 1;
-						queue.push( memory );
-					}
-
-					( function add( args ) {
-						jQuery.each( args, function( _, arg ) {
-							if ( isFunction( arg ) ) {
-								if ( !options.unique || !self.has( arg ) ) {
-									list.push( arg );
-								}
-							} else if ( arg && arg.length && toType( arg ) !== "string" ) {
-
-								// Inspect recursively
-								add( arg );
-							}
-						} );
-					} )( arguments );
-
-					if ( memory && !firing ) {
-						fire();
-					}
-				}
-				return this;
-			},
-
-			// Remove a callback from the list
-			remove: function() {
-				jQuery.each( arguments, function( _, arg ) {
-					var index;
-					while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
-						list.splice( index, 1 );
-
-						// Handle firing indexes
-						if ( index <= firingIndex ) {
-							firingIndex--;
-						}
-					}
-				} );
-				return this;
-			},
-
-			// Check if a given callback is in the list.
-			// If no argument is given, return whether or not list has callbacks attached.
-			has: function( fn ) {
-				return fn ?
-					jQuery.inArray( fn, list ) > -1 :
-					list.length > 0;
-			},
-
-			// Remove all callbacks from the list
-			empty: function() {
-				if ( list ) {
-					list = [];
-				}
-				return this;
-			},
-
-			// Disable .fire and .add
-			// Abort any current/pending executions
-			// Clear all callbacks and values
-			disable: function() {
-				locked = queue = [];
-				list = memory = "";
-				return this;
-			},
-			disabled: function() {
-				return !list;
-			},
-
-			// Disable .fire
-			// Also disable .add unless we have memory (since it would have no effect)
-			// Abort any pending executions
-			lock: function() {
-				locked = queue = [];
-				if ( !memory && !firing ) {
-					list = memory = "";
-				}
-				return this;
-			},
-			locked: function() {
-				return !!locked;
-			},
-
-			// Call all callbacks with the given context and arguments
-			fireWith: function( context, args ) {
-				if ( !locked ) {
-					args = args || [];
-					args = [ context, args.slice ? args.slice() : args ];
-					queue.push( args );
-					if ( !firing ) {
-						fire();
-					}
-				}
-				return this;
-			},
-
-			// Call all the callbacks with the given arguments
-			fire: function() {
-				self.fireWith( this, arguments );
-				return this;
-			},
-
-			// To know if the callbacks have already been called at least once
-			fired: function() {
-				return !!fired;
-			}
-		};
-
-	return self;
-};
-
-
-function Identity( v ) {
-	return v;
-}
-function Thrower( ex ) {
-	throw ex;
-}
-
-function adoptValue( value, resolve, reject, noValue ) {
-	var method;
-
-	try {
-
-		// Check for promise aspect first to privilege synchronous behavior
-		if ( value && isFunction( ( method = value.promise ) ) ) {
-			method.call( value ).done( resolve ).fail( reject );
-
-		// Other thenables
-		} else if ( value && isFunction( ( method = value.then ) ) ) {
-			method.call( value, resolve, reject );
-
-		// Other non-thenables
-		} else {
-
-			// Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
-			// * false: [ value ].slice( 0 ) => resolve( value )
-			// * true: [ value ].slice( 1 ) => resolve()
-			resolve.apply( undefined, [ value ].slice( noValue ) );
-		}
-
-	// For Promises/A+, convert exceptions into rejections
-	// Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
-	// Deferred#then to conditionally suppress rejection.
-	} catch ( value ) {
-
-		// Support: Android 4.0 only
-		// Strict mode functions invoked without .call/.apply get global-object context
-		reject.apply( undefined, [ value ] );
-	}
-}
-
-jQuery.extend( {
-
-	Deferred: function( func ) {
-		var tuples = [
-
-				// action, add listener, callbacks,
-				// ... .then handlers, argument index, [final state]
-				[ "notify", "progress", jQuery.Callbacks( "memory" ),
-					jQuery.Callbacks( "memory" ), 2 ],
-				[ "resolve", "done", jQuery.Callbacks( "once memory" ),
-					jQuery.Callbacks( "once memory" ), 0, "resolved" ],
-				[ "reject", "fail", jQuery.Callbacks( "once memory" ),
-					jQuery.Callbacks( "once memory" ), 1, "rejected" ]
-			],
-			state = "pending",
-			promise = {
-				state: function() {
-					return state;
-				},
-				always: function() {
-					deferred.done( arguments ).fail( arguments );
-					return this;
-				},
-				"catch": function( fn ) {
-					return promise.then( null, fn );
-				},
-
-				// Keep pipe for back-compat
-				pipe: function( /* fnDone, fnFail, fnProgress */ ) {
-					var fns = arguments;
-
-					return jQuery.Deferred( function( newDefer ) {
-						jQuery.each( tuples, function( i, tuple ) {
-
-							// Map tuples (progress, done, fail) to arguments (done, fail, progress)
-							var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];
-
-							// deferred.progress(function() { bind to newDefer or newDefer.notify })
-							// deferred.done(function() { bind to newDefer or newDefer.resolve })
-							// deferred.fail(function() { bind to newDefer or newDefer.reject })
-							deferred[ tuple[ 1 ] ]( function() {
-								var returned = fn && fn.apply( this, arguments );
-								if ( returned && isFunction( returned.promise ) ) {
-									returned.promise()
-										.progress( newDefer.notify )
-										.done( newDefer.resolve )
-										.fail( newDefer.reject );
-								} else {
-									newDefer[ tuple[ 0 ] + "With" ](
-										this,
-										fn ? [ returned ] : arguments
-									);
-								}
-							} );
-						} );
-						fns = null;
-					} ).promise();
-				},
-				then: function( onFulfilled, onRejected, onProgress ) {
-					var maxDepth = 0;
-					function resolve( depth, deferred, handler, special ) {
-						return function() {
-							var that = this,
-								args = arguments,
-								mightThrow = function() {
-									var returned, then;
-
-									// Support: Promises/A+ section 2.3.3.3.3
-									// https://promisesaplus.com/#point-59
-									// Ignore double-resolution attempts
-									if ( depth < maxDepth ) {
-										return;
-									}
-
-									returned = handler.apply( that, args );
-
-									// Support: Promises/A+ section 2.3.1
-									// https://promisesaplus.com/#point-48
-									if ( returned === deferred.promise() ) {
-										throw new TypeError( "Thenable self-resolution" );
-									}
-
-									// Support: Promises/A+ sections 2.3.3.1, 3.5
-									// https://promisesaplus.com/#point-54
-									// https://promisesaplus.com/#point-75
-									// Retrieve `then` only once
-									then = returned &&
-
-										// Support: Promises/A+ section 2.3.4
-										// https://promisesaplus.com/#point-64
-										// Only check objects and functions for thenability
-										( typeof returned === "object" ||
-											typeof returned === "function" ) &&
-										returned.then;
-
-									// Handle a returned thenable
-									if ( isFunction( then ) ) {
-
-										// Special processors (notify) just wait for resolution
-										if ( special ) {
-											then.call(
-												returned,
-												resolve( maxDepth, deferred, Identity, special ),
-												resolve( maxDepth, deferred, Thrower, special )
-											);
-
-										// Normal processors (resolve) also hook into progress
-										} else {
-
-											// ...and disregard older resolution values
-											maxDepth++;
-
-											then.call(
-												returned,
-												resolve( maxDepth, deferred, Identity, special ),
-												resolve( maxDepth, deferred, Thrower, special ),
-												resolve( maxDepth, deferred, Identity,
-													deferred.notifyWith )
-											);
-										}
-
-									// Handle all other returned values
-									} else {
-
-										// Only substitute handlers pass on context
-										// and multiple values (non-spec behavior)
-										if ( handler !== Identity ) {
-											that = undefined;
-											args = [ returned ];
-										}
-
-										// Process the value(s)
-										// Default process is resolve
-										( special || deferred.resolveWith )( that, args );
-									}
-								},
-
-								// Only normal processors (resolve) catch and reject exceptions
-								process = special ?
-									mightThrow :
-									function() {
-										try {
-											mightThrow();
-										} catch ( e ) {
-
-											if ( jQuery.Deferred.exceptionHook ) {
-												jQuery.Deferred.exceptionHook( e,
-													process.stackTrace );
-											}
-
-											// Support: Promises/A+ section 2.3.3.3.4.1
-											// https://promisesaplus.com/#point-61
-											// Ignore post-resolution exceptions
-											if ( depth + 1 >= maxDepth ) {
-
-												// Only substitute handlers pass on context
-												// and multiple values (non-spec behavior)
-												if ( handler !== Thrower ) {
-													that = undefined;
-													args = [ e ];
-												}
-
-												deferred.rejectWith( that, args );
-											}
-										}
-									};
-
-							// Support: Promises/A+ section 2.3.3.3.1
-							// https://promisesaplus.com/#point-57
-							// Re-resolve promises immediately to dodge false rejection from
-							// subsequent errors
-							if ( depth ) {
-								process();
-							} else {
-
-								// Call an optional hook to record the stack, in case of exception
-								// since it's otherwise lost when execution goes async
-								if ( jQuery.Deferred.getStackHook ) {
-									process.stackTrace = jQuery.Deferred.getStackHook();
-								}
-								window.setTimeout( process );
-							}
-						};
-					}
-
-					return jQuery.Deferred( function( newDefer ) {
-
-						// progress_handlers.add( ... )
-						tuples[ 0 ][ 3 ].add(
-							resolve(
-								0,
-								newDefer,
-								isFunction( onProgress ) ?
-									onProgress :
-									Identity,
-								newDefer.notifyWith
-							)
-						);
-
-						// fulfilled_handlers.add( ... )
-						tuples[ 1 ][ 3 ].add(
-							resolve(
-								0,
-								newDefer,
-								isFunction( onFulfilled ) ?
-									onFulfilled :
-									Identity
-							)
-						);
-
-						// rejected_handlers.add( ... )
-						tuples[ 2 ][ 3 ].add(
-							resolve(
-								0,
-								newDefer,
-								isFunction( onRejected ) ?
-									onRejected :
-									Thrower
-							)
-						);
-					} ).promise();
-				},
-
-				// Get a promise for this deferred
-				// If obj is provided, the promise aspect is added to the object
-				promise: function( obj ) {
-					return obj != null ? jQuery.extend( obj, promise ) : promise;
-				}
-			},
-			deferred = {};
-
-		// Add list-specific methods
-		jQuery.each( tuples, function( i, tuple ) {
-			var list = tuple[ 2 ],
-				stateString = tuple[ 5 ];
-
-			// promise.progress = list.add
-			// promise.done = list.add
-			// promise.fail = list.add
-			promise[ tuple[ 1 ] ] = list.add;
-
-			// Handle state
-			if ( stateString ) {
-				list.add(
-					function() {
-
-						// state = "resolved" (i.e., fulfilled)
-						// state = "rejected"
-						state = stateString;
-					},
-
-					// rejected_callbacks.disable
-					// fulfilled_callbacks.disable
-					tuples[ 3 - i ][ 2 ].disable,
-
-					// rejected_handlers.disable
-					// fulfilled_handlers.disable
-					tuples[ 3 - i ][ 3 ].disable,
-
-					// progress_callbacks.lock
-					tuples[ 0 ][ 2 ].lock,
-
-					// progress_handlers.lock
-					tuples[ 0 ][ 3 ].lock
-				);
-			}
-
-			// progress_handlers.fire
-			// fulfilled_handlers.fire
-			// rejected_handlers.fire
-			list.add( tuple[ 3 ].fire );
-
-			// deferred.notify = function() { deferred.notifyWith(...) }
-			// deferred.resolve = function() { deferred.resolveWith(...) }
-			// deferred.reject = function() { deferred.rejectWith(...) }
-			deferred[ tuple[ 0 ] ] = function() {
-				deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
-				return this;
-			};
-
-			// deferred.notifyWith = list.fireWith
-			// deferred.resolveWith = list.fireWith
-			// deferred.rejectWith = list.fireWith
-			deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
-		} );
-
-		// Make the deferred a promise
-		promise.promise( deferred );
-
-		// Call given func if any
-		if ( func ) {
-			func.call( deferred, deferred );
-		}
-
-		// All done!
-		return deferred;
-	},
-
-	// Deferred helper
-	when: function( singleValue ) {
-		var
-
-			// count of uncompleted subordinates
-			remaining = arguments.length,
-
-			// count of unprocessed arguments
-			i = remaining,
-
-			// subordinate fulfillment data
-			resolveContexts = Array( i ),
-			resolveValues = slice.call( arguments ),
-
-			// the master Deferred
-			master = jQuery.Deferred(),
-
-			// subordinate callback factory
-			updateFunc = function( i ) {
-				return function( value ) {
-					resolveContexts[ i ] = this;
-					resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
-					if ( !( --remaining ) ) {
-						master.resolveWith( resolveContexts, resolveValues );
-					}
-				};
-			};
-
-		// Single- and empty arguments are adopted like Promise.resolve
-		if ( remaining <= 1 ) {
-			adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject,
-				!remaining );
-
-			// Use .then() to unwrap secondary thenables (cf. gh-3000)
-			if ( master.state() === "pending" ||
-				isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {
-
-				return master.then();
-			}
-		}
-
-		// Multiple arguments are aggregated like Promise.all array elements
-		while ( i-- ) {
-			adoptValue( resolveValues[ i ], updateFunc( i ), master.reject );
-		}
-
-		return master.promise();
-	}
-} );
-
-
-// These usually indicate a programmer mistake during development,
-// warn about them ASAP rather than swallowing them by default.
-var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;
-
-jQuery.Deferred.exceptionHook = function( error, stack ) {
-
-	// Support: IE 8 - 9 only
-	// Console exists when dev tools are open, which can happen at any time
-	if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
-		window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
-	}
-};
-
-
-
-
-jQuery.readyException = function( error ) {
-	window.setTimeout( function() {
-		throw error;
-	} );
-};
-
-
-
-
-// The deferred used on DOM ready
-var readyList = jQuery.Deferred();
-
-jQuery.fn.ready = function( fn ) {
-
-	readyList
-		.then( fn )
-
-		// Wrap jQuery.readyException in a function so that the lookup
-		// happens at the time of error handling instead of callback
-		// registration.
-		.catch( function( error ) {
-			jQuery.readyException( error );
-		} );
-
-	return this;
-};
-
-jQuery.extend( {
-
-	// Is the DOM ready to be used? Set to true once it occurs.
-	isReady: false,
-
-	// A counter to track how many items to wait for before
-	// the ready event fires. See #6781
-	readyWait: 1,
-
-	// Handle when the DOM is ready
-	ready: function( wait ) {
-
-		// Abort if there are pending holds or we're already ready
-		if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
-			return;
-		}
-
-		// Remember that the DOM is ready
-		jQuery.isReady = true;
-
-		// If a normal DOM Ready event fired, decrement, and wait if need be
-		if ( wait !== true && --jQuery.readyWait > 0 ) {
-			return;
-		}
-
-		// If there are functions bound, to execute
-		readyList.resolveWith( document, [ jQuery ] );
-	}
-} );
-
-jQuery.ready.then = readyList.then;
-
-// The ready event handler and self cleanup method
-function completed() {
-	document.removeEventListener( "DOMContentLoaded", completed );
-	window.removeEventListener( "load", completed );
-	jQuery.ready();
-}
-
-// Catch cases where $(document).ready() is called
-// after the browser event has already occurred.
-// Support: IE <=9 - 10 only
-// Older IE sometimes signals "interactive" too soon
-if ( document.readyState === "complete" ||
-	( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {
-
-	// Handle it asynchronously to allow scripts the opportunity to delay ready
-	window.setTimeout( jQuery.ready );
-
-} else {
-
-	// Use the handy event callback
-	document.addEventListener( "DOMContentLoaded", completed );
-
-	// A fallback to window.onload, that will always work
-	window.addEventListener( "load", completed );
-}
-
-
-
-
-// Multifunctional method to get and set values of a collection
-// The value/s can optionally be executed if it's a function
-var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
-	var i = 0,
-		len = elems.length,
-		bulk = key == null;
-
-	// Sets many values
-	if ( toType( key ) === "object" ) {
-		chainable = true;
-		for ( i in key ) {
-			access( elems, fn, i, key[ i ], true, emptyGet, raw );
-		}
-
-	// Sets one value
-	} else if ( value !== undefined ) {
-		chainable = true;
-
-		if ( !isFunction( value ) ) {
-			raw = true;
-		}
-
-		if ( bulk ) {
-
-			// Bulk operations run against the entire set
-			if ( raw ) {
-				fn.call( elems, value );
-				fn = null;
-
-			// ...except when executing function values
-			} else {
-				bulk = fn;
-				fn = function( elem, key, value ) {
-					return bulk.call( jQuery( elem ), value );
-				};
-			}
-		}
-
-		if ( fn ) {
-			for ( ; i < len; i++ ) {
-				fn(
-					elems[ i ], key, raw ?
-					value :
-					value.call( elems[ i ], i, fn( elems[ i ], key ) )
-				);
-			}
-		}
-	}
-
-	if ( chainable ) {
-		return elems;
-	}
-
-	// Gets
-	if ( bulk ) {
-		return fn.call( elems );
-	}
-
-	return len ? fn( elems[ 0 ], key ) : emptyGet;
-};
-
-
-// Matches dashed string for camelizing
-var rmsPrefix = /^-ms-/,
-	rdashAlpha = /-([a-z])/g;
-
-// Used by camelCase as callback to replace()
-function fcamelCase( all, letter ) {
-	return letter.toUpperCase();
-}
-
-// Convert dashed to camelCase; used by the css and data modules
-// Support: IE <=9 - 11, Edge 12 - 15
-// Microsoft forgot to hump their vendor prefix (#9572)
-function camelCase( string ) {
-	return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
-}
-var acceptData = function( owner ) {
-
-	// Accepts only:
-	//  - Node
-	//    - Node.ELEMENT_NODE
-	//    - Node.DOCUMENT_NODE
-	//  - Object
-	//    - Any
-	return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
-};
-
-
-
-
-function Data() {
-	this.expando = jQuery.expando + Data.uid++;
-}
-
-Data.uid = 1;
-
-Data.prototype = {
-
-	cache: function( owner ) {
-
-		// Check if the owner object already has a cache
-		var value = owner[ this.expando ];
-
-		// If not, create one
-		if ( !value ) {
-			value = {};
-
-			// We can accept data for non-element nodes in modern browsers,
-			// but we should not, see #8335.
-			// Always return an empty object.
-			if ( acceptData( owner ) ) {
-
-				// If it is a node unlikely to be stringify-ed or looped over
-				// use plain assignment
-				if ( owner.nodeType ) {
-					owner[ this.expando ] = value;
-
-				// Otherwise secure it in a non-enumerable property
-				// configurable must be true to allow the property to be
-				// deleted when data is removed
-				} else {
-					Object.defineProperty( owner, this.expando, {
-						value: value,
-						configurable: true
-					} );
-				}
-			}
-		}
-
-		return value;
-	},
-	set: function( owner, data, value ) {
-		var prop,
-			cache = this.cache( owner );
-
-		// Handle: [ owner, key, value ] args
-		// Always use camelCase key (gh-2257)
-		if ( typeof data === "string" ) {
-			cache[ camelCase( data ) ] = value;
-
-		// Handle: [ owner, { properties } ] args
-		} else {
-
-			// Copy the properties one-by-one to the cache object
-			for ( prop in data ) {
-				cache[ camelCase( prop ) ] = data[ prop ];
-			}
-		}
-		return cache;
-	},
-	get: function( owner, key ) {
-		return key === undefined ?
-			this.cache( owner ) :
-
-			// Always use camelCase key (gh-2257)
-			owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ];
-	},
-	access: function( owner, key, value ) {
-
-		// In cases where either:
-		//
-		//   1. No key was specified
-		//   2. A string key was specified, but no value provided
-		//
-		// Take the "read" path and allow the get method to determine
-		// which value to return, respectively either:
-		//
-		//   1. The entire cache object
-		//   2. The data stored at the key
-		//
-		if ( key === undefined ||
-				( ( key && typeof key === "string" ) && value === undefined ) ) {
-
-			return this.get( owner, key );
-		}
-
-		// When the key is not a string, or both a key and value
-		// are specified, set or extend (existing objects) with either:
-		//
-		//   1. An object of properties
-		//   2. A key and value
-		//
-		this.set( owner, key, value );
-
-		// Since the "set" path can have two possible entry points
-		// return the expected data based on which path was taken[*]
-		return value !== undefined ? value : key;
-	},
-	remove: function( owner, key ) {
-		var i,
-			cache = owner[ this.expando ];
-
-		if ( cache === undefined ) {
-			return;
-		}
-
-		if ( key !== undefined ) {
-
-			// Support array or space separated string of keys
-			if ( Array.isArray( key ) ) {
-
-				// If key is an array of keys...
-				// We always set camelCase keys, so remove that.
-				key = key.map( camelCase );
-			} else {
-				key = camelCase( key );
-
-				// If a key with the spaces exists, use it.
-				// Otherwise, create an array by matching non-whitespace
-				key = key in cache ?
-					[ key ] :
-					( key.match( rnothtmlwhite ) || [] );
-			}
-
-			i = key.length;
-
-			while ( i-- ) {
-				delete cache[ key[ i ] ];
-			}
-		}
-
-		// Remove the expando if there's no more data
-		if ( key === undefined || jQuery.isEmptyObject( cache ) ) {
-
-			// Support: Chrome <=35 - 45
-			// Webkit & Blink performance suffers when deleting properties
-			// from DOM nodes, so set to undefined instead
-			// https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
-			if ( owner.nodeType ) {
-				owner[ this.expando ] = undefined;
-			} else {
-				delete owner[ this.expando ];
-			}
-		}
-	},
-	hasData: function( owner ) {
-		var cache = owner[ this.expando ];
-		return cache !== undefined && !jQuery.isEmptyObject( cache );
-	}
-};
-var dataPriv = new Data();
-
-var dataUser = new Data();
-
-
-
-//	Implementation Summary
-//
-//	1. Enforce API surface and semantic compatibility with 1.9.x branch
-//	2. Improve the module's maintainability by reducing the storage
-//		paths to a single mechanism.
-//	3. Use the same single mechanism to support "private" and "user" data.
-//	4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
-//	5. Avoid exposing implementation details on user objects (eg. expando properties)
-//	6. Provide a clear path for implementation upgrade to WeakMap in 2014
-
-var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
-	rmultiDash = /[A-Z]/g;
-
-function getData( data ) {
-	if ( data === "true" ) {
-		return true;
-	}
-
-	if ( data === "false" ) {
-		return false;
-	}
-
-	if ( data === "null" ) {
-		return null;
-	}
-
-	// Only convert to a number if it doesn't change the string
-	if ( data === +data + "" ) {
-		return +data;
-	}
-
-	if ( rbrace.test( data ) ) {
-		return JSON.parse( data );
-	}
-
-	return data;
-}
-
-function dataAttr( elem, key, data ) {
-	var name;
-
-	// If nothing was found internally, try to fetch any
-	// data from the HTML5 data-* attribute
-	if ( data === undefined && elem.nodeType === 1 ) {
-		name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
-		data = elem.getAttribute( name );
-
-		if ( typeof data === "string" ) {
-			try {
-				data = getData( data );
-			} catch ( e ) {}
-
-			// Make sure we set the data so it isn't changed later
-			dataUser.set( elem, key, data );
-		} else {
-			data = undefined;
-		}
-	}
-	return data;
-}
-
-jQuery.extend( {
-	hasData: function( elem ) {
-		return dataUser.hasData( elem ) || dataPriv.hasData( elem );
-	},
-
-	data: function( elem, name, data ) {
-		return dataUser.access( elem, name, data );
-	},
-
-	removeData: function( elem, name ) {
-		dataUser.remove( elem, name );
-	},
-
-	// TODO: Now that all calls to _data and _removeData have been replaced
-	// with direct calls to dataPriv methods, these can be deprecated.
-	_data: function( elem, name, data ) {
-		return dataPriv.access( elem, name, data );
-	},
-
-	_removeData: function( elem, name ) {
-		dataPriv.remove( elem, name );
-	}
-} );
-
-jQuery.fn.extend( {
-	data: function( key, value ) {
-		var i, name, data,
-			elem = this[ 0 ],
-			attrs = elem && elem.attributes;
-
-		// Gets all values
-		if ( key === undefined ) {
-			if ( this.length ) {
-				data = dataUser.get( elem );
-
-				if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
-					i = attrs.length;
-					while ( i-- ) {
-
-						// Support: IE 11 only
-						// The attrs elements can be null (#14894)
-						if ( attrs[ i ] ) {
-							name = attrs[ i ].name;
-							if ( name.indexOf( "data-" ) === 0 ) {
-								name = camelCase( name.slice( 5 ) );
-								dataAttr( elem, name, data[ name ] );
-							}
-						}
-					}
-					dataPriv.set( elem, "hasDataAttrs", true );
-				}
-			}
-
-			return data;
-		}
-
-		// Sets multiple values
-		if ( typeof key === "object" ) {
-			return this.each( function() {
-				dataUser.set( this, key );
-			} );
-		}
-
-		return access( this, function( value ) {
-			var data;
-
-			// The calling jQuery object (element matches) is not empty
-			// (and therefore has an element appears at this[ 0 ]) and the
-			// `value` parameter was not undefined. An empty jQuery object
-			// will result in `undefined` for elem = this[ 0 ] which will
-			// throw an exception if an attempt to read a data cache is made.
-			if ( elem && value === undefined ) {
-
-				// Attempt to get data from the cache
-				// The key will always be camelCased in Data
-				data = dataUser.get( elem, key );
-				if ( data !== undefined ) {
-					return data;
-				}
-
-				// Attempt to "discover" the data in
-				// HTML5 custom data-* attrs
-				data = dataAttr( elem, key );
-				if ( data !== undefined ) {
-					return data;
-				}
-
-				// We tried really hard, but the data doesn't exist.
-				return;
-			}
-
-			// Set the data...
-			this.each( function() {
-
-				// We always store the camelCased key
-				dataUser.set( this, key, value );
-			} );
-		}, null, value, arguments.length > 1, null, true );
-	},
-
-	removeData: function( key ) {
-		return this.each( function() {
-			dataUser.remove( this, key );
-		} );
-	}
-} );
-
-
-jQuery.extend( {
-	queue: function( elem, type, data ) {
-		var queue;
-
-		if ( elem ) {
-			type = ( type || "fx" ) + "queue";
-			queue = dataPriv.get( elem, type );
-
-			// Speed up dequeue by getting out quickly if this is just a lookup
-			if ( data ) {
-				if ( !queue || Array.isArray( data ) ) {
-					queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
-				} else {
-					queue.push( data );
-				}
-			}
-			return queue || [];
-		}
-	},
-
-	dequeue: function( elem, type ) {
-		type = type || "fx";
-
-		var queue = jQuery.queue( elem, type ),
-			startLength = queue.length,
-			fn = queue.shift(),
-			hooks = jQuery._queueHooks( elem, type ),
-			next = function() {
-				jQuery.dequeue( elem, type );
-			};
-
-		// If the fx queue is dequeued, always remove the progress sentinel
-		if ( fn === "inprogress" ) {
-			fn = queue.shift();
-			startLength--;
-		}
-
-		if ( fn ) {
-
-			// Add a progress sentinel to prevent the fx queue from being
-			// automatically dequeued
-			if ( type === "fx" ) {
-				queue.unshift( "inprogress" );
-			}
-
-			// Clear up the last queue stop function
-			delete hooks.stop;
-			fn.call( elem, next, hooks );
-		}
-
-		if ( !startLength && hooks ) {
-			hooks.empty.fire();
-		}
-	},
-
-	// Not public - generate a queueHooks object, or return the current one
-	_queueHooks: function( elem, type ) {
-		var key = type + "queueHooks";
-		return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
-			empty: jQuery.Callbacks( "once memory" ).add( function() {
-				dataPriv.remove( elem, [ type + "queue", key ] );
-			} )
-		} );
-	}
-} );
-
-jQuery.fn.extend( {
-	queue: function( type, data ) {
-		var setter = 2;
-
-		if ( typeof type !== "string" ) {
-			data = type;
-			type = "fx";
-			setter--;
-		}
-
-		if ( arguments.length < setter ) {
-			return jQuery.queue( this[ 0 ], type );
-		}
-
-		return data === undefined ?
-			this :
-			this.each( function() {
-				var queue = jQuery.queue( this, type, data );
-
-				// Ensure a hooks for this queue
-				jQuery._queueHooks( this, type );
-
-				if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
-					jQuery.dequeue( this, type );
-				}
-			} );
-	},
-	dequeue: function( type ) {
-		return this.each( function() {
-			jQuery.dequeue( this, type );
-		} );
-	},
-	clearQueue: function( type ) {
-		return this.queue( type || "fx", [] );
-	},
-
-	// Get a promise resolved when queues of a certain type
-	// are emptied (fx is the type by default)
-	promise: function( type, obj ) {
-		var tmp,
-			count = 1,
-			defer = jQuery.Deferred(),
-			elements = this,
-			i = this.length,
-			resolve = function() {
-				if ( !( --count ) ) {
-					defer.resolveWith( elements, [ elements ] );
-				}
-			};
-
-		if ( typeof type !== "string" ) {
-			obj = type;
-			type = undefined;
-		}
-		type = type || "fx";
-
-		while ( i-- ) {
-			tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
-			if ( tmp && tmp.empty ) {
-				count++;
-				tmp.empty.add( resolve );
-			}
-		}
-		resolve();
-		return defer.promise( obj );
-	}
-} );
-var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;
-
-var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );
-
-
-var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
-
-var documentElement = document.documentElement;
-
-
-
-	var isAttached = function( elem ) {
-			return jQuery.contains( elem.ownerDocument, elem );
-		},
-		composed = { composed: true };
-
-	// Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only
-	// Check attachment across shadow DOM boundaries when possible (gh-3504)
-	// Support: iOS 10.0-10.2 only
-	// Early iOS 10 versions support `attachShadow` but not `getRootNode`,
-	// leading to errors. We need to check for `getRootNode`.
-	if ( documentElement.getRootNode ) {
-		isAttached = function( elem ) {
-			return jQuery.contains( elem.ownerDocument, elem ) ||
-				elem.getRootNode( composed ) === elem.ownerDocument;
-		};
-	}
-var isHiddenWithinTree = function( elem, el ) {
-
-		// isHiddenWithinTree might be called from jQuery#filter function;
-		// in that case, element will be second argument
-		elem = el || elem;
-
-		// Inline style trumps all
-		return elem.style.display === "none" ||
-			elem.style.display === "" &&
-
-			// Otherwise, check computed style
-			// Support: Firefox <=43 - 45
-			// Disconnected elements can have computed display: none, so first confirm that elem is
-			// in the document.
-			isAttached( elem ) &&
-
-			jQuery.css( elem, "display" ) === "none";
-	};
-
-var swap = function( elem, options, callback, args ) {
-	var ret, name,
-		old = {};
-
-	// Remember the old values, and insert the new ones
-	for ( name in options ) {
-		old[ name ] = elem.style[ name ];
-		elem.style[ name ] = options[ name ];
-	}
-
-	ret = callback.apply( elem, args || [] );
-
-	// Revert the old values
-	for ( name in options ) {
-		elem.style[ name ] = old[ name ];
-	}
-
-	return ret;
-};
-
-
-
-
-function adjustCSS( elem, prop, valueParts, tween ) {
-	var adjusted, scale,
-		maxIterations = 20,
-		currentValue = tween ?
-			function() {
-				return tween.cur();
-			} :
-			function() {
-				return jQuery.css( elem, prop, "" );
-			},
-		initial = currentValue(),
-		unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
-
-		// Starting value computation is required for potential unit mismatches
-		initialInUnit = elem.nodeType &&
-			( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
-			rcssNum.exec( jQuery.css( elem, prop ) );
-
-	if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {
-
-		// Support: Firefox <=54
-		// Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144)
-		initial = initial / 2;
-
-		// Trust units reported by jQuery.css
-		unit = unit || initialInUnit[ 3 ];
-
-		// Iteratively approximate from a nonzero starting point
-		initialInUnit = +initial || 1;
-
-		while ( maxIterations-- ) {
-
-			// Evaluate and update our best guess (doubling guesses that zero out).
-			// Finish if the scale equals or crosses 1 (making the old*new product non-positive).
-			jQuery.style( elem, prop, initialInUnit + unit );
-			if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) {
-				maxIterations = 0;
-			}
-			initialInUnit = initialInUnit / scale;
-
-		}
-
-		initialInUnit = initialInUnit * 2;
-		jQuery.style( elem, prop, initialInUnit + unit );
-
-		// Make sure we update the tween properties later on
-		valueParts = valueParts || [];
-	}
-
-	if ( valueParts ) {
-		initialInUnit = +initialInUnit || +initial || 0;
-
-		// Apply relative offset (+=/-=) if specified
-		adjusted = valueParts[ 1 ] ?
-			initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
-			+valueParts[ 2 ];
-		if ( tween ) {
-			tween.unit = unit;
-			tween.start = initialInUnit;
-			tween.end = adjusted;
-		}
-	}
-	return adjusted;
-}
-
-
-var defaultDisplayMap = {};
-
-function getDefaultDisplay( elem ) {
-	var temp,
-		doc = elem.ownerDocument,
-		nodeName = elem.nodeName,
-		display = defaultDisplayMap[ nodeName ];
-
-	if ( display ) {
-		return display;
-	}
-
-	temp = doc.body.appendChild( doc.createElement( nodeName ) );
-	display = jQuery.css( temp, "display" );
-
-	temp.parentNode.removeChild( temp );
-
-	if ( display === "none" ) {
-		display = "block";
-	}
-	defaultDisplayMap[ nodeName ] = display;
-
-	return display;
-}
-
-function showHide( elements, show ) {
-	var display, elem,
-		values = [],
-		index = 0,
-		length = elements.length;
-
-	// Determine new display value for elements that need to change
-	for ( ; index < length; index++ ) {
-		elem = elements[ index ];
-		if ( !elem.style ) {
-			continue;
-		}
-
-		display = elem.style.display;
-		if ( show ) {
-
-			// Since we force visibility upon cascade-hidden elements, an immediate (and slow)
-			// check is required in this first loop unless we have a nonempty display value (either
-			// inline or about-to-be-restored)
-			if ( display === "none" ) {
-				values[ index ] = dataPriv.get( elem, "display" ) || null;
-				if ( !values[ index ] ) {
-					elem.style.display = "";
-				}
-			}
-			if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
-				values[ index ] = getDefaultDisplay( elem );
-			}
-		} else {
-			if ( display !== "none" ) {
-				values[ index ] = "none";
-
-				// Remember what we're overwriting
-				dataPriv.set( elem, "display", display );
-			}
-		}
-	}
-
-	// Set the display of the elements in a second loop to avoid constant reflow
-	for ( index = 0; index < length; index++ ) {
-		if ( values[ index ] != null ) {
-			elements[ index ].style.display = values[ index ];
-		}
-	}
-
-	return elements;
-}
-
-jQuery.fn.extend( {
-	show: function() {
-		return showHide( this, true );
-	},
-	hide: function() {
-		return showHide( this );
-	},
-	toggle: function( state ) {
-		if ( typeof state === "boolean" ) {
-			return state ? this.show() : this.hide();
-		}
-
-		return this.each( function() {
-			if ( isHiddenWithinTree( this ) ) {
-				jQuery( this ).show();
-			} else {
-				jQuery( this ).hide();
-			}
-		} );
-	}
-} );
-var rcheckableType = ( /^(?:checkbox|radio)$/i );
-
-var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]*)/i );
-
-var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i );
-
-
-
-// We have to close these tags to support XHTML (#13200)
-var wrapMap = {
-
-	// Support: IE <=9 only
-	option: [ 1, "<select multiple='multiple'>", "</select>" ],
-
-	// XHTML parsers do not magically insert elements in the
-	// same way that tag soup parsers do. So we cannot shorten
-	// this by omitting <tbody> or other required elements.
-	thead: [ 1, "<table>", "</table>" ],
-	col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
-	tr: [ 2, "<table><tbody>", "</tbody></table>" ],
-	td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
-
-	_default: [ 0, "", "" ]
-};
-
-// Support: IE <=9 only
-wrapMap.optgroup = wrapMap.option;
-
-wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
-wrapMap.th = wrapMap.td;
-
-
-function getAll( context, tag ) {
-
-	// Support: IE <=9 - 11 only
-	// Use typeof to avoid zero-argument method invocation on host objects (#15151)
-	var ret;
-
-	if ( typeof context.getElementsByTagName !== "undefined" ) {
-		ret = context.getElementsByTagName( tag || "*" );
-
-	} else if ( typeof context.querySelectorAll !== "undefined" ) {
-		ret = context.querySelectorAll( tag || "*" );
-
-	} else {
-		ret = [];
-	}
-
-	if ( tag === undefined || tag && nodeName( context, tag ) ) {
-		return jQuery.merge( [ context ], ret );
-	}
-
-	return ret;
-}
-
-
-// Mark scripts as having already been evaluated
-function setGlobalEval( elems, refElements ) {
-	var i = 0,
-		l = elems.length;
-
-	for ( ; i < l; i++ ) {
-		dataPriv.set(
-			elems[ i ],
-			"globalEval",
-			!refElements || dataPriv.get( refElements[ i ], "globalEval" )
-		);
-	}
-}
-
-
-var rhtml = /<|&#?\w+;/;
-
-function buildFragment( elems, context, scripts, selection, ignored ) {
-	var elem, tmp, tag, wrap, attached, j,
-		fragment = context.createDocumentFragment(),
-		nodes = [],
-		i = 0,
-		l = elems.length;
-
-	for ( ; i < l; i++ ) {
-		elem = elems[ i ];
-
-		if ( elem || elem === 0 ) {
-
-			// Add nodes directly
-			if ( toType( elem ) === "object" ) {
-
-				// Support: Android <=4.0 only, PhantomJS 1 only
-				// push.apply(_, arraylike) throws on ancient WebKit
-				jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
-
-			// Convert non-html into a text node
-			} else if ( !rhtml.test( elem ) ) {
-				nodes.push( context.createTextNode( elem ) );
-
-			// Convert html into DOM nodes
-			} else {
-				tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
-
-				// Deserialize a standard representation
-				tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
-				wrap = wrapMap[ tag ] || wrapMap._default;
-				tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
-
-				// Descend through wrappers to the right content
-				j = wrap[ 0 ];
-				while ( j-- ) {
-					tmp = tmp.lastChild;
-				}
-
-				// Support: Android <=4.0 only, PhantomJS 1 only
-				// push.apply(_, arraylike) throws on ancient WebKit
-				jQuery.merge( nodes, tmp.childNodes );
-
-				// Remember the top-level container
-				tmp = fragment.firstChild;
-
-				// Ensure the created nodes are orphaned (#12392)
-				tmp.textContent = "";
-			}
-		}
-	}
-
-	// Remove wrapper from fragment
-	fragment.textContent = "";
-
-	i = 0;
-	while ( ( elem = nodes[ i++ ] ) ) {
-
-		// Skip elements already in the context collection (trac-4087)
-		if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
-			if ( ignored ) {
-				ignored.push( elem );
-			}
-			continue;
-		}
-
-		attached = isAttached( elem );
-
-		// Append to fragment
-		tmp = getAll( fragment.appendChild( elem ), "script" );
-
-		// Preserve script evaluation history
-		if ( attached ) {
-			setGlobalEval( tmp );
-		}
-
-		// Capture executables
-		if ( scripts ) {
-			j = 0;
-			while ( ( elem = tmp[ j++ ] ) ) {
-				if ( rscriptType.test( elem.type || "" ) ) {
-					scripts.push( elem );
-				}
-			}
-		}
-	}
-
-	return fragment;
-}
-
-
-( function() {
-	var fragment = document.createDocumentFragment(),
-		div = fragment.appendChild( document.createElement( "div" ) ),
-		input = document.createElement( "input" );
-
-	// Support: Android 4.0 - 4.3 only
-	// Check state lost if the name is set (#11217)
-	// Support: Windows Web Apps (WWA)
-	// `name` and `type` must use .setAttribute for WWA (#14901)
-	input.setAttribute( "type", "radio" );
-	input.setAttribute( "checked", "checked" );
-	input.setAttribute( "name", "t" );
-
-	div.appendChild( input );
-
-	// Support: Android <=4.1 only
-	// Older WebKit doesn't clone checked state correctly in fragments
-	support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
-
-	// Support: IE <=11 only
-	// Make sure textarea (and checkbox) defaultValue is properly cloned
-	div.innerHTML = "<textarea>x</textarea>";
-	support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
-} )();
-
-
-var
-	rkeyEvent = /^key/,
-	rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
-	rtypenamespace = /^([^.]*)(?:\.(.+)|)/;
-
-function returnTrue() {
-	return true;
-}
-
-function returnFalse() {
-	return false;
-}
-
-// Support: IE <=9 - 11+
-// focus() and blur() are asynchronous, except when they are no-op.
-// So expect focus to be synchronous when the element is already active,
-// and blur to be synchronous when the element is not already active.
-// (focus and blur are always synchronous in other supported browsers,
-// this just defines when we can count on it).
-function expectSync( elem, type ) {
-	return ( elem === safeActiveElement() ) === ( type === "focus" );
-}
-
-// Support: IE <=9 only
-// Accessing document.activeElement can throw unexpectedly
-// https://bugs.jquery.com/ticket/13393
-function safeActiveElement() {
-	try {
-		return document.activeElement;
-	} catch ( err ) { }
-}
-
-function on( elem, types, selector, data, fn, one ) {
-	var origFn, type;
-
-	// Types can be a map of types/handlers
-	if ( typeof types === "object" ) {
-
-		// ( types-Object, selector, data )
-		if ( typeof selector !== "string" ) {
-
-			// ( types-Object, data )
-			data = data || selector;
-			selector = undefined;
-		}
-		for ( type in types ) {
-			on( elem, type, selector, data, types[ type ], one );
-		}
-		return elem;
-	}
-
-	if ( data == null && fn == null ) {
-
-		// ( types, fn )
-		fn = selector;
-		data = selector = undefined;
-	} else if ( fn == null ) {
-		if ( typeof selector === "string" ) {
-
-			// ( types, selector, fn )
-			fn = data;
-			data = undefined;
-		} else {
-
-			// ( types, data, fn )
-			fn = data;
-			data = selector;
-			selector = undefined;
-		}
-	}
-	if ( fn === false ) {
-		fn = returnFalse;
-	} else if ( !fn ) {
-		return elem;
-	}
-
-	if ( one === 1 ) {
-		origFn = fn;
-		fn = function( event ) {
-
-			// Can use an empty set, since event contains the info
-			jQuery().off( event );
-			return origFn.apply( this, arguments );
-		};
-
-		// Use same guid so caller can remove using origFn
-		fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
-	}
-	return elem.each( function() {
-		jQuery.event.add( this, types, fn, data, selector );
-	} );
-}
-
-/*
- * Helper functions for managing events -- not part of the public interface.
- * Props to Dean Edwards' addEvent library for many of the ideas.
- */
-jQuery.event = {
-
-	global: {},
-
-	add: function( elem, types, handler, data, selector ) {
-
-		var handleObjIn, eventHandle, tmp,
-			events, t, handleObj,
-			special, handlers, type, namespaces, origType,
-			elemData = dataPriv.get( elem );
-
-		// Don't attach events to noData or text/comment nodes (but allow plain objects)
-		if ( !elemData ) {
-			return;
-		}
-
-		// Caller can pass in an object of custom data in lieu of the handler
-		if ( handler.handler ) {
-			handleObjIn = handler;
-			handler = handleObjIn.handler;
-			selector = handleObjIn.selector;
-		}
-
-		// Ensure that invalid selectors throw exceptions at attach time
-		// Evaluate against documentElement in case elem is a non-element node (e.g., document)
-		if ( selector ) {
-			jQuery.find.matchesSelector( documentElement, selector );
-		}
-
-		// Make sure that the handler has a unique ID, used to find/remove it later
-		if ( !handler.guid ) {
-			handler.guid = jQuery.guid++;
-		}
-
-		// Init the element's event structure and main handler, if this is the first
-		if ( !( events = elemData.events ) ) {
-			events = elemData.events = {};
-		}
-		if ( !( eventHandle = elemData.handle ) ) {
-			eventHandle = elemData.handle = function( e ) {
-
-				// Discard the second event of a jQuery.event.trigger() and
-				// when an event is called after a page has unloaded
-				return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
-					jQuery.event.dispatch.apply( elem, arguments ) : undefined;
-			};
-		}
-
-		// Handle multiple events separated by a space
-		types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
-		t = types.length;
-		while ( t-- ) {
-			tmp = rtypenamespace.exec( types[ t ] ) || [];
-			type = origType = tmp[ 1 ];
-			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
-
-			// There *must* be a type, no attaching namespace-only handlers
-			if ( !type ) {
-				continue;
-			}
-
-			// If event changes its type, use the special event handlers for the changed type
-			special = jQuery.event.special[ type ] || {};
-
-			// If selector defined, determine special event api type, otherwise given type
-			type = ( selector ? special.delegateType : special.bindType ) || type;
-
-			// Update special based on newly reset type
-			special = jQuery.event.special[ type ] || {};
-
-			// handleObj is passed to all event handlers
-			handleObj = jQuery.extend( {
-				type: type,
-				origType: origType,
-				data: data,
-				handler: handler,
-				guid: handler.guid,
-				selector: selector,
-				needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
-				namespace: namespaces.join( "." )
-			}, handleObjIn );
-
-			// Init the event handler queue if we're the first
-			if ( !( handlers = events[ type ] ) ) {
-				handlers = events[ type ] = [];
-				handlers.delegateCount = 0;
-
-				// Only use addEventListener if the special events handler returns false
-				if ( !special.setup ||
-					special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
-
-					if ( elem.addEventListener ) {
-						elem.addEventListener( type, eventHandle );
-					}
-				}
-			}
-
-			if ( special.add ) {
-				special.add.call( elem, handleObj );
-
-				if ( !handleObj.handler.guid ) {
-					handleObj.handler.guid = handler.guid;
-				}
-			}
-
-			// Add to the element's handler list, delegates in front
-			if ( selector ) {
-				handlers.splice( handlers.delegateCount++, 0, handleObj );
-			} else {
-				handlers.push( handleObj );
-			}
-
-			// Keep track of which events have ever been used, for event optimization
-			jQuery.event.global[ type ] = true;
-		}
-
-	},
-
-	// Detach an event or set of events from an element
-	remove: function( elem, types, handler, selector, mappedTypes ) {
-
-		var j, origCount, tmp,
-			events, t, handleObj,
-			special, handlers, type, namespaces, origType,
-			elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );
-
-		if ( !elemData || !( events = elemData.events ) ) {
-			return;
-		}
-
-		// Once for each type.namespace in types; type may be omitted
-		types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
-		t = types.length;
-		while ( t-- ) {
-			tmp = rtypenamespace.exec( types[ t ] ) || [];
-			type = origType = tmp[ 1 ];
-			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
-
-			// Unbind all events (on this namespace, if provided) for the element
-			if ( !type ) {
-				for ( type in events ) {
-					jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
-				}
-				continue;
-			}
-
-			special = jQuery.event.special[ type ] || {};
-			type = ( selector ? special.delegateType : special.bindType ) || type;
-			handlers = events[ type ] || [];
-			tmp = tmp[ 2 ] &&
-				new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );
-
-			// Remove matching events
-			origCount = j = handlers.length;
-			while ( j-- ) {
-				handleObj = handlers[ j ];
-
-				if ( ( mappedTypes || origType === handleObj.origType ) &&
-					( !handler || handler.guid === handleObj.guid ) &&
-					( !tmp || tmp.test( handleObj.namespace ) ) &&
-					( !selector || selector === handleObj.selector ||
-						selector === "**" && handleObj.selector ) ) {
-					handlers.splice( j, 1 );
-
-					if ( handleObj.selector ) {
-						handlers.delegateCount--;
-					}
-					if ( special.remove ) {
-						special.remove.call( elem, handleObj );
-					}
-				}
-			}
-
-			// Remove generic event handler if we removed something and no more handlers exist
-			// (avoids potential for endless recursion during removal of special event handlers)
-			if ( origCount && !handlers.length ) {
-				if ( !special.teardown ||
-					special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
-
-					jQuery.removeEvent( elem, type, elemData.handle );
-				}
-
-				delete events[ type ];
-			}
-		}
-
-		// Remove data and the expando if it's no longer used
-		if ( jQuery.isEmptyObject( events ) ) {
-			dataPriv.remove( elem, "handle events" );
-		}
-	},
-
-	dispatch: function( nativeEvent ) {
-
-		// Make a writable jQuery.Event from the native event object
-		var event = jQuery.event.fix( nativeEvent );
-
-		var i, j, ret, matched, handleObj, handlerQueue,
-			args = new Array( arguments.length ),
-			handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [],
-			special = jQuery.event.special[ event.type ] || {};
-
-		// Use the fix-ed jQuery.Event rather than the (read-only) native event
-		args[ 0 ] = event;
-
-		for ( i = 1; i < arguments.length; i++ ) {
-			args[ i ] = arguments[ i ];
-		}
-
-		event.delegateTarget = this;
-
-		// Call the preDispatch hook for the mapped type, and let it bail if desired
-		if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
-			return;
-		}
-
-		// Determine handlers
-		handlerQueue = jQuery.event.handlers.call( this, event, handlers );
-
-		// Run delegates first; they may want to stop propagation beneath us
-		i = 0;
-		while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
-			event.currentTarget = matched.elem;
-
-			j = 0;
-			while ( ( handleObj = matched.handlers[ j++ ] ) &&
-				!event.isImmediatePropagationStopped() ) {
-
-				// If the event is namespaced, then each handler is only invoked if it is
-				// specially universal or its namespaces are a superset of the event's.
-				if ( !event.rnamespace || handleObj.namespace === false ||
-					event.rnamespace.test( handleObj.namespace ) ) {
-
-					event.handleObj = handleObj;
-					event.data = handleObj.data;
-
-					ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
-						handleObj.handler ).apply( matched.elem, args );
-
-					if ( ret !== undefined ) {
-						if ( ( event.result = ret ) === false ) {
-							event.preventDefault();
-							event.stopPropagation();
-						}
-					}
-				}
-			}
-		}
-
-		// Call the postDispatch hook for the mapped type
-		if ( special.postDispatch ) {
-			special.postDispatch.call( this, event );
-		}
-
-		return event.result;
-	},
-
-	handlers: function( event, handlers ) {
-		var i, handleObj, sel, matchedHandlers, matchedSelectors,
-			handlerQueue = [],
-			delegateCount = handlers.delegateCount,
-			cur = event.target;
-
-		// Find delegate handlers
-		if ( delegateCount &&
-
-			// Support: IE <=9
-			// Black-hole SVG <use> instance trees (trac-13180)
-			cur.nodeType &&
-
-			// Support: Firefox <=42
-			// Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
-			// https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
-			// Support: IE 11 only
-			// ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
-			!( event.type === "click" && event.button >= 1 ) ) {
-
-			for ( ; cur !== this; cur = cur.parentNode || this ) {
-
-				// Don't check non-elements (#13208)
-				// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
-				if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) {
-					matchedHandlers = [];
-					matchedSelectors = {};
-					for ( i = 0; i < delegateCount; i++ ) {
-						handleObj = handlers[ i ];
-
-						// Don't conflict with Object.prototype properties (#13203)
-						sel = handleObj.selector + " ";
-
-						if ( matchedSelectors[ sel ] === undefined ) {
-							matchedSelectors[ sel ] = handleObj.needsContext ?
-								jQuery( sel, this ).index( cur ) > -1 :
-								jQuery.find( sel, this, null, [ cur ] ).length;
-						}
-						if ( matchedSelectors[ sel ] ) {
-							matchedHandlers.push( handleObj );
-						}
-					}
-					if ( matchedHandlers.length ) {
-						handlerQueue.push( { elem: cur, handlers: matchedHandlers } );
-					}
-				}
-			}
-		}
-
-		// Add the remaining (directly-bound) handlers
-		cur = this;
-		if ( delegateCount < handlers.length ) {
-			handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );
-		}
-
-		return handlerQueue;
-	},
-
-	addProp: function( name, hook ) {
-		Object.defineProperty( jQuery.Event.prototype, name, {
-			enumerable: true,
-			configurable: true,
-
-			get: isFunction( hook ) ?
-				function() {
-					if ( this.originalEvent ) {
-							return hook( this.originalEvent );
-					}
-				} :
-				function() {
-					if ( this.originalEvent ) {
-							return this.originalEvent[ name ];
-					}
-				},
-
-			set: function( value ) {
-				Object.defineProperty( this, name, {
-					enumerable: true,
-					configurable: true,
-					writable: true,
-					value: value
-				} );
-			}
-		} );
-	},
-
-	fix: function( originalEvent ) {
-		return originalEvent[ jQuery.expando ] ?
-			originalEvent :
-			new jQuery.Event( originalEvent );
-	},
-
-	special: {
-		load: {
-
-			// Prevent triggered image.load events from bubbling to window.load
-			noBubble: true
-		},
-		click: {
-
-			// Utilize native event to ensure correct state for checkable inputs
-			setup: function( data ) {
-
-				// For mutual compressibility with _default, replace `this` access with a local var.
-				// `|| data` is dead code meant only to preserve the variable through minification.
-				var el = this || data;
-
-				// Claim the first handler
-				if ( rcheckableType.test( el.type ) &&
-					el.click && nodeName( el, "input" ) ) {
-
-					// dataPriv.set( el, "click", ... )
-					leverageNative( el, "click", returnTrue );
-				}
-
-				// Return false to allow normal processing in the caller
-				return false;
-			},
-			trigger: function( data ) {
-
-				// For mutual compressibility with _default, replace `this` access with a local var.
-				// `|| data` is dead code meant only to preserve the variable through minification.
-				var el = this || data;
-
-				// Force setup before triggering a click
-				if ( rcheckableType.test( el.type ) &&
-					el.click && nodeName( el, "input" ) ) {
-
-					leverageNative( el, "click" );
-				}
-
-				// Return non-false to allow normal event-path propagation
-				return true;
-			},
-
-			// For cross-browser consistency, suppress native .click() on links
-			// Also prevent it if we're currently inside a leveraged native-event stack
-			_default: function( event ) {
-				var target = event.target;
-				return rcheckableType.test( target.type ) &&
-					target.click && nodeName( target, "input" ) &&
-					dataPriv.get( target, "click" ) ||
-					nodeName( target, "a" );
-			}
-		},
-
-		beforeunload: {
-			postDispatch: function( event ) {
-
-				// Support: Firefox 20+
-				// Firefox doesn't alert if the returnValue field is not set.
-				if ( event.result !== undefined && event.originalEvent ) {
-					event.originalEvent.returnValue = event.result;
-				}
-			}
-		}
-	}
-};
-
-// Ensure the presence of an event listener that handles manually-triggered
-// synthetic events by interrupting progress until reinvoked in response to
-// *native* events that it fires directly, ensuring that state changes have
-// already occurred before other listeners are invoked.
-function leverageNative( el, type, expectSync ) {
-
-	// Missing expectSync indicates a trigger call, which must force setup through jQuery.event.add
-	if ( !expectSync ) {
-		if ( dataPriv.get( el, type ) === undefined ) {
-			jQuery.event.add( el, type, returnTrue );
-		}
-		return;
-	}
-
-	// Register the controller as a special universal handler for all event namespaces
-	dataPriv.set( el, type, false );
-	jQuery.event.add( el, type, {
-		namespace: false,
-		handler: function( event ) {
-			var notAsync, result,
-				saved = dataPriv.get( this, type );
-
-			if ( ( event.isTrigger & 1 ) && this[ type ] ) {
-
-				// Interrupt processing of the outer synthetic .trigger()ed event
-				// Saved data should be false in such cases, but might be a leftover capture object
-				// from an async native handler (gh-4350)
-				if ( !saved.length ) {
-
-					// Store arguments for use when handling the inner native event
-					// There will always be at least one argument (an event object), so this array
-					// will not be confused with a leftover capture object.
-					saved = slice.call( arguments );
-					dataPriv.set( this, type, saved );
-
-					// Trigger the native event and capture its result
-					// Support: IE <=9 - 11+
-					// focus() and blur() are asynchronous
-					notAsync = expectSync( this, type );
-					this[ type ]();
-					result = dataPriv.get( this, type );
-					if ( saved !== result || notAsync ) {
-						dataPriv.set( this, type, false );
-					} else {
-						result = {};
-					}
-					if ( saved !== result ) {
-
-						// Cancel the outer synthetic event
-						event.stopImmediatePropagation();
-						event.preventDefault();
-						return result.value;
-					}
-
-				// If this is an inner synthetic event for an event with a bubbling surrogate
-				// (focus or blur), assume that the surrogate already propagated from triggering the
-				// native event and prevent that from happening again here.
-				// This technically gets the ordering wrong w.r.t. to `.trigger()` (in which the
-				// bubbling surrogate propagates *after* the non-bubbling base), but that seems
-				// less bad than duplication.
-				} else if ( ( jQuery.event.special[ type ] || {} ).delegateType ) {
-					event.stopPropagation();
-				}
-
-			// If this is a native event triggered above, everything is now in order
-			// Fire an inner synthetic event with the original arguments
-			} else if ( saved.length ) {
-
-				// ...and capture the result
-				dataPriv.set( this, type, {
-					value: jQuery.event.trigger(
-
-						// Support: IE <=9 - 11+
-						// Extend with the prototype to reset the above stopImmediatePropagation()
-						jQuery.extend( saved[ 0 ], jQuery.Event.prototype ),
-						saved.slice( 1 ),
-						this
-					)
-				} );
-
-				// Abort handling of the native event
-				event.stopImmediatePropagation();
-			}
-		}
-	} );
-}
-
-jQuery.removeEvent = function( elem, type, handle ) {
-
-	// This "if" is needed for plain objects
-	if ( elem.removeEventListener ) {
-		elem.removeEventListener( type, handle );
-	}
-};
-
-jQuery.Event = function( src, props ) {
-
-	// Allow instantiation without the 'new' keyword
-	if ( !( this instanceof jQuery.Event ) ) {
-		return new jQuery.Event( src, props );
-	}
-
-	// Event object
-	if ( src && src.type ) {
-		this.originalEvent = src;
-		this.type = src.type;
-
-		// Events bubbling up the document may have been marked as prevented
-		// by a handler lower down the tree; reflect the correct value.
-		this.isDefaultPrevented = src.defaultPrevented ||
-				src.defaultPrevented === undefined &&
-
-				// Support: Android <=2.3 only
-				src.returnValue === false ?
-			returnTrue :
-			returnFalse;
-
-		// Create target properties
-		// Support: Safari <=6 - 7 only
-		// Target should not be a text node (#504, #13143)
-		this.target = ( src.target && src.target.nodeType === 3 ) ?
-			src.target.parentNode :
-			src.target;
-
-		this.currentTarget = src.currentTarget;
-		this.relatedTarget = src.relatedTarget;
-
-	// Event type
-	} else {
-		this.type = src;
-	}
-
-	// Put explicitly provided properties onto the event object
-	if ( props ) {
-		jQuery.extend( this, props );
-	}
-
-	// Create a timestamp if incoming event doesn't have one
-	this.timeStamp = src && src.timeStamp || Date.now();
-
-	// Mark it as fixed
-	this[ jQuery.expando ] = true;
-};
-
-// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
-// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
-jQuery.Event.prototype = {
-	constructor: jQuery.Event,
-	isDefaultPrevented: returnFalse,
-	isPropagationStopped: returnFalse,
-	isImmediatePropagationStopped: returnFalse,
-	isSimulated: false,
-
-	preventDefault: function() {
-		var e = this.originalEvent;
-
-		this.isDefaultPrevented = returnTrue;
-
-		if ( e && !this.isSimulated ) {
-			e.preventDefault();
-		}
-	},
-	stopPropagation: function() {
-		var e = this.originalEvent;
-
-		this.isPropagationStopped = returnTrue;
-
-		if ( e && !this.isSimulated ) {
-			e.stopPropagation();
-		}
-	},
-	stopImmediatePropagation: function() {
-		var e = this.originalEvent;
-
-		this.isImmediatePropagationStopped = returnTrue;
-
-		if ( e && !this.isSimulated ) {
-			e.stopImmediatePropagation();
-		}
-
-		this.stopPropagation();
-	}
-};
-
-// Includes all common event props including KeyEvent and MouseEvent specific props
-jQuery.each( {
-	altKey: true,
-	bubbles: true,
-	cancelable: true,
-	changedTouches: true,
-	ctrlKey: true,
-	detail: true,
-	eventPhase: true,
-	metaKey: true,
-	pageX: true,
-	pageY: true,
-	shiftKey: true,
-	view: true,
-	"char": true,
-	code: true,
-	charCode: true,
-	key: true,
-	keyCode: true,
-	button: true,
-	buttons: true,
-	clientX: true,
-	clientY: true,
-	offsetX: true,
-	offsetY: true,
-	pointerId: true,
-	pointerType: true,
-	screenX: true,
-	screenY: true,
-	targetTouches: true,
-	toElement: true,
-	touches: true,
-
-	which: function( event ) {
-		var button = event.button;
-
-		// Add which for key events
-		if ( event.which == null && rkeyEvent.test( event.type ) ) {
-			return event.charCode != null ? event.charCode : event.keyCode;
-		}
-
-		// Add which for click: 1 === left; 2 === middle; 3 === right
-		if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) {
-			if ( button & 1 ) {
-				return 1;
-			}
-
-			if ( button & 2 ) {
-				return 3;
-			}
-
-			if ( button & 4 ) {
-				return 2;
-			}
-
-			return 0;
-		}
-
-		return event.which;
-	}
-}, jQuery.event.addProp );
-
-jQuery.each( { focus: "focusin", blur: "focusout" }, function( type, delegateType ) {
-	jQuery.event.special[ type ] = {
-
-		// Utilize native event if possible so blur/focus sequence is correct
-		setup: function() {
-
-			// Claim the first handler
-			// dataPriv.set( this, "focus", ... )
-			// dataPriv.set( this, "blur", ... )
-			leverageNative( this, type, expectSync );
-
-			// Return false to allow normal processing in the caller
-			return false;
-		},
-		trigger: function() {
-
-			// Force setup before trigger
-			leverageNative( this, type );
-
-			// Return non-false to allow normal event-path propagation
-			return true;
-		},
-
-		delegateType: delegateType
-	};
-} );
-
-// Create mouseenter/leave events using mouseover/out and event-time checks
-// so that event delegation works in jQuery.
-// Do the same for pointerenter/pointerleave and pointerover/pointerout
-//
-// Support: Safari 7 only
-// Safari sends mouseenter too often; see:
-// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
-// for the description of the bug (it existed in older Chrome versions as well).
-jQuery.each( {
-	mouseenter: "mouseover",
-	mouseleave: "mouseout",
-	pointerenter: "pointerover",
-	pointerleave: "pointerout"
-}, function( orig, fix ) {
-	jQuery.event.special[ orig ] = {
-		delegateType: fix,
-		bindType: fix,
-
-		handle: function( event ) {
-			var ret,
-				target = this,
-				related = event.relatedTarget,
-				handleObj = event.handleObj;
-
-			// For mouseenter/leave call the handler if related is outside the target.
-			// NB: No relatedTarget if the mouse left/entered the browser window
-			if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
-				event.type = handleObj.origType;
-				ret = handleObj.handler.apply( this, arguments );
-				event.type = fix;
-			}
-			return ret;
-		}
-	};
-} );
-
-jQuery.fn.extend( {
-
-	on: function( types, selector, data, fn ) {
-		return on( this, types, selector, data, fn );
-	},
-	one: function( types, selector, data, fn ) {
-		return on( this, types, selector, data, fn, 1 );
-	},
-	off: function( types, selector, fn ) {
-		var handleObj, type;
-		if ( types && types.preventDefault && types.handleObj ) {
-
-			// ( event )  dispatched jQuery.Event
-			handleObj = types.handleObj;
-			jQuery( types.delegateTarget ).off(
-				handleObj.namespace ?
-					handleObj.origType + "." + handleObj.namespace :
-					handleObj.origType,
-				handleObj.selector,
-				handleObj.handler
-			);
-			return this;
-		}
-		if ( typeof types === "object" ) {
-
-			// ( types-object [, selector] )
-			for ( type in types ) {
-				this.off( type, selector, types[ type ] );
-			}
-			return this;
-		}
-		if ( selector === false || typeof selector === "function" ) {
-
-			// ( types [, fn] )
-			fn = selector;
-			selector = undefined;
-		}
-		if ( fn === false ) {
-			fn = returnFalse;
-		}
-		return this.each( function() {
-			jQuery.event.remove( this, types, fn, selector );
-		} );
-	}
-} );
-
-
-var
-
-	/* eslint-disable max-len */
-
-	// See https://github.com/eslint/eslint/issues/3229
-	rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,
-
-	/* eslint-enable */
-
-	// Support: IE <=10 - 11, Edge 12 - 13 only
-	// In IE/Edge using regex groups here causes severe slowdowns.
-	// See https://connect.microsoft.com/IE/feedback/details/1736512/
-	rnoInnerhtml = /<script|<style|<link/i,
-
-	// checked="checked" or checked
-	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
-	rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;
-
-// Prefer a tbody over its parent table for containing new rows
-function manipulationTarget( elem, content ) {
-	if ( nodeName( elem, "table" ) &&
-		nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {
-
-		return jQuery( elem ).children( "tbody" )[ 0 ] || elem;
-	}
-
-	return elem;
-}
-
-// Replace/restore the type attribute of script elements for safe DOM manipulation
-function disableScript( elem ) {
-	elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
-	return elem;
-}
-function restoreScript( elem ) {
-	if ( ( elem.type || "" ).slice( 0, 5 ) === "true/" ) {
-		elem.type = elem.type.slice( 5 );
-	} else {
-		elem.removeAttribute( "type" );
-	}
-
-	return elem;
-}
-
-function cloneCopyEvent( src, dest ) {
-	var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;
-
-	if ( dest.nodeType !== 1 ) {
-		return;
-	}
-
-	// 1. Copy private data: events, handlers, etc.
-	if ( dataPriv.hasData( src ) ) {
-		pdataOld = dataPriv.access( src );
-		pdataCur = dataPriv.set( dest, pdataOld );
-		events = pdataOld.events;
-
-		if ( events ) {
-			delete pdataCur.handle;
-			pdataCur.events = {};
-
-			for ( type in events ) {
-				for ( i = 0, l = events[ type ].length; i < l; i++ ) {
-					jQuery.event.add( dest, type, events[ type ][ i ] );
-				}
-			}
-		}
-	}
-
-	// 2. Copy user data
-	if ( dataUser.hasData( src ) ) {
-		udataOld = dataUser.access( src );
-		udataCur = jQuery.extend( {}, udataOld );
-
-		dataUser.set( dest, udataCur );
-	}
-}
-
-// Fix IE bugs, see support tests
-function fixInput( src, dest ) {
-	var nodeName = dest.nodeName.toLowerCase();
-
-	// Fails to persist the checked state of a cloned checkbox or radio button.
-	if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
-		dest.checked = src.checked;
-
-	// Fails to return the selected option to the default selected state when cloning options
-	} else if ( nodeName === "input" || nodeName === "textarea" ) {
-		dest.defaultValue = src.defaultValue;
-	}
-}
-
-function domManip( collection, args, callback, ignored ) {
-
-	// Flatten any nested arrays
-	args = concat.apply( [], args );
-
-	var fragment, first, scripts, hasScripts, node, doc,
-		i = 0,
-		l = collection.length,
-		iNoClone = l - 1,
-		value = args[ 0 ],
-		valueIsFunction = isFunction( value );
-
-	// We can't cloneNode fragments that contain checked, in WebKit
-	if ( valueIsFunction ||
-			( l > 1 && typeof value === "string" &&
-				!support.checkClone && rchecked.test( value ) ) ) {
-		return collection.each( function( index ) {
-			var self = collection.eq( index );
-			if ( valueIsFunction ) {
-				args[ 0 ] = value.call( this, index, self.html() );
-			}
-			domManip( self, args, callback, ignored );
-		} );
-	}
-
-	if ( l ) {
-		fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
-		first = fragment.firstChild;
-
-		if ( fragment.childNodes.length === 1 ) {
-			fragment = first;
-		}
-
-		// Require either new content or an interest in ignored elements to invoke the callback
-		if ( first || ignored ) {
-			scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
-			hasScripts = scripts.length;
-
-			// Use the original fragment for the last item
-			// instead of the first because it can end up
-			// being emptied incorrectly in certain situations (#8070).
-			for ( ; i < l; i++ ) {
-				node = fragment;
-
-				if ( i !== iNoClone ) {
-					node = jQuery.clone( node, true, true );
-
-					// Keep references to cloned scripts for later restoration
-					if ( hasScripts ) {
-
-						// Support: Android <=4.0 only, PhantomJS 1 only
-						// push.apply(_, arraylike) throws on ancient WebKit
-						jQuery.merge( scripts, getAll( node, "script" ) );
-					}
-				}
-
-				callback.call( collection[ i ], node, i );
-			}
-
-			if ( hasScripts ) {
-				doc = scripts[ scripts.length - 1 ].ownerDocument;
-
-				// Reenable scripts
-				jQuery.map( scripts, restoreScript );
-
-				// Evaluate executable scripts on first document insertion
-				for ( i = 0; i < hasScripts; i++ ) {
-					node = scripts[ i ];
-					if ( rscriptType.test( node.type || "" ) &&
-						!dataPriv.access( node, "globalEval" ) &&
-						jQuery.contains( doc, node ) ) {
-
-						if ( node.src && ( node.type || "" ).toLowerCase()  !== "module" ) {
-
-							// Optional AJAX dependency, but won't run scripts if not present
-							if ( jQuery._evalUrl && !node.noModule ) {
-								jQuery._evalUrl( node.src, {
-									nonce: node.nonce || node.getAttribute( "nonce" )
-								} );
-							}
-						} else {
-							DOMEval( node.textContent.replace( rcleanScript, "" ), node, doc );
-						}
-					}
-				}
-			}
-		}
-	}
-
-	return collection;
-}
-
-function remove( elem, selector, keepData ) {
-	var node,
-		nodes = selector ? jQuery.filter( selector, elem ) : elem,
-		i = 0;
-
-	for ( ; ( node = nodes[ i ] ) != null; i++ ) {
-		if ( !keepData && node.nodeType === 1 ) {
-			jQuery.cleanData( getAll( node ) );
-		}
-
-		if ( node.parentNode ) {
-			if ( keepData && isAttached( node ) ) {
-				setGlobalEval( getAll( node, "script" ) );
-			}
-			node.parentNode.removeChild( node );
-		}
-	}
-
-	return elem;
-}
-
-jQuery.extend( {
-	htmlPrefilter: function( html ) {
-		return html.replace( rxhtmlTag, "<$1></$2>" );
-	},
-
-	clone: function( elem, dataAndEvents, deepDataAndEvents ) {
-		var i, l, srcElements, destElements,
-			clone = elem.cloneNode( true ),
-			inPage = isAttached( elem );
-
-		// Fix IE cloning issues
-		if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
-				!jQuery.isXMLDoc( elem ) ) {
-
-			// We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
-			destElements = getAll( clone );
-			srcElements = getAll( elem );
-
-			for ( i = 0, l = srcElements.length; i < l; i++ ) {
-				fixInput( srcElements[ i ], destElements[ i ] );
-			}
-		}
-
-		// Copy the events from the original to the clone
-		if ( dataAndEvents ) {
-			if ( deepDataAndEvents ) {
-				srcElements = srcElements || getAll( elem );
-				destElements = destElements || getAll( clone );
-
-				for ( i = 0, l = srcElements.length; i < l; i++ ) {
-					cloneCopyEvent( srcElements[ i ], destElements[ i ] );
-				}
-			} else {
-				cloneCopyEvent( elem, clone );
-			}
-		}
-
-		// Preserve script evaluation history
-		destElements = getAll( clone, "script" );
-		if ( destElements.length > 0 ) {
-			setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
-		}
-
-		// Return the cloned set
-		return clone;
-	},
-
-	cleanData: function( elems ) {
-		var data, elem, type,
-			special = jQuery.event.special,
-			i = 0;
-
-		for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
-			if ( acceptData( elem ) ) {
-				if ( ( data = elem[ dataPriv.expando ] ) ) {
-					if ( data.events ) {
-						for ( type in data.events ) {
-							if ( special[ type ] ) {
-								jQuery.event.remove( elem, type );
-
-							// This is a shortcut to avoid jQuery.event.remove's overhead
-							} else {
-								jQuery.removeEvent( elem, type, data.handle );
-							}
-						}
-					}
-
-					// Support: Chrome <=35 - 45+
-					// Assign undefined instead of using delete, see Data#remove
-					elem[ dataPriv.expando ] = undefined;
-				}
-				if ( elem[ dataUser.expando ] ) {
-
-					// Support: Chrome <=35 - 45+
-					// Assign undefined instead of using delete, see Data#remove
-					elem[ dataUser.expando ] = undefined;
-				}
-			}
-		}
-	}
-} );
-
-jQuery.fn.extend( {
-	detach: function( selector ) {
-		return remove( this, selector, true );
-	},
-
-	remove: function( selector ) {
-		return remove( this, selector );
-	},
-
-	text: function( value ) {
-		return access( this, function( value ) {
-			return value === undefined ?
-				jQuery.text( this ) :
-				this.empty().each( function() {
-					if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-						this.textContent = value;
-					}
-				} );
-		}, null, value, arguments.length );
-	},
-
-	append: function() {
-		return domManip( this, arguments, function( elem ) {
-			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-				var target = manipulationTarget( this, elem );
-				target.appendChild( elem );
-			}
-		} );
-	},
-
-	prepend: function() {
-		return domManip( this, arguments, function( elem ) {
-			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-				var target = manipulationTarget( this, elem );
-				target.insertBefore( elem, target.firstChild );
-			}
-		} );
-	},
-
-	before: function() {
-		return domManip( this, arguments, function( elem ) {
-			if ( this.parentNode ) {
-				this.parentNode.insertBefore( elem, this );
-			}
-		} );
-	},
-
-	after: function() {
-		return domManip( this, arguments, function( elem ) {
-			if ( this.parentNode ) {
-				this.parentNode.insertBefore( elem, this.nextSibling );
-			}
-		} );
-	},
-
-	empty: function() {
-		var elem,
-			i = 0;
-
-		for ( ; ( elem = this[ i ] ) != null; i++ ) {
-			if ( elem.nodeType === 1 ) {
-
-				// Prevent memory leaks
-				jQuery.cleanData( getAll( elem, false ) );
-
-				// Remove any remaining nodes
-				elem.textContent = "";
-			}
-		}
-
-		return this;
-	},
-
-	clone: function( dataAndEvents, deepDataAndEvents ) {
-		dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
-		deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
-
-		return this.map( function() {
-			return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
-		} );
-	},
-
-	html: function( value ) {
-		return access( this, function( value ) {
-			var elem = this[ 0 ] || {},
-				i = 0,
-				l = this.length;
-
-			if ( value === undefined && elem.nodeType === 1 ) {
-				return elem.innerHTML;
-			}
-
-			// See if we can take a shortcut and just use innerHTML
-			if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
-				!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
-
-				value = jQuery.htmlPrefilter( value );
-
-				try {
-					for ( ; i < l; i++ ) {
-						elem = this[ i ] || {};
-
-						// Remove element nodes and prevent memory leaks
-						if ( elem.nodeType === 1 ) {
-							jQuery.cleanData( getAll( elem, false ) );
-							elem.innerHTML = value;
-						}
-					}
-
-					elem = 0;
-
-				// If using innerHTML throws an exception, use the fallback method
-				} catch ( e ) {}
-			}
-
-			if ( elem ) {
-				this.empty().append( value );
-			}
-		}, null, value, arguments.length );
-	},
-
-	replaceWith: function() {
-		var ignored = [];
-
-		// Make the changes, replacing each non-ignored context element with the new content
-		return domManip( this, arguments, function( elem ) {
-			var parent = this.parentNode;
-
-			if ( jQuery.inArray( this, ignored ) < 0 ) {
-				jQuery.cleanData( getAll( this ) );
-				if ( parent ) {
-					parent.replaceChild( elem, this );
-				}
-			}
-
-		// Force callback invocation
-		}, ignored );
-	}
-} );
-
-jQuery.each( {
-	appendTo: "append",
-	prependTo: "prepend",
-	insertBefore: "before",
-	insertAfter: "after",
-	replaceAll: "replaceWith"
-}, function( name, original ) {
-	jQuery.fn[ name ] = function( selector ) {
-		var elems,
-			ret = [],
-			insert = jQuery( selector ),
-			last = insert.length - 1,
-			i = 0;
-
-		for ( ; i <= last; i++ ) {
-			elems = i === last ? this : this.clone( true );
-			jQuery( insert[ i ] )[ original ]( elems );
-
-			// Support: Android <=4.0 only, PhantomJS 1 only
-			// .get() because push.apply(_, arraylike) throws on ancient WebKit
-			push.apply( ret, elems.get() );
-		}
-
-		return this.pushStack( ret );
-	};
-} );
-var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
-
-var getStyles = function( elem ) {
-
-		// Support: IE <=11 only, Firefox <=30 (#15098, #14150)
-		// IE throws on elements created in popups
-		// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
-		var view = elem.ownerDocument.defaultView;
-
-		if ( !view || !view.opener ) {
-			view = window;
-		}
-
-		return view.getComputedStyle( elem );
-	};
-
-var rboxStyle = new RegExp( cssExpand.join( "|" ), "i" );
-
-
-
-( function() {
-
-	// Executing both pixelPosition & boxSizingReliable tests require only one layout
-	// so they're executed at the same time to save the second computation.
-	function computeStyleTests() {
-
-		// This is a singleton, we need to execute it only once
-		if ( !div ) {
-			return;
-		}
-
-		container.style.cssText = "position:absolute;left:-11111px;width:60px;" +
-			"margin-top:1px;padding:0;border:0";
-		div.style.cssText =
-			"position:relative;display:block;box-sizing:border-box;overflow:scroll;" +
-			"margin:auto;border:1px;padding:1px;" +
-			"width:60%;top:1%";
-		documentElement.appendChild( container ).appendChild( div );
-
-		var divStyle = window.getComputedStyle( div );
-		pixelPositionVal = divStyle.top !== "1%";
-
-		// Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
-		reliableMarginLeftVal = roundPixelMeasures( divStyle.marginLeft ) === 12;
-
-		// Support: Android 4.0 - 4.3 only, Safari <=9.1 - 10.1, iOS <=7.0 - 9.3
-		// Some styles come back with percentage values, even though they shouldn't
-		div.style.right = "60%";
-		pixelBoxStylesVal = roundPixelMeasures( divStyle.right ) === 36;
-
-		// Support: IE 9 - 11 only
-		// Detect misreporting of content dimensions for box-sizing:border-box elements
-		boxSizingReliableVal = roundPixelMeasures( divStyle.width ) === 36;
-
-		// Support: IE 9 only
-		// Detect overflow:scroll screwiness (gh-3699)
-		// Support: Chrome <=64
-		// Don't get tricked when zoom affects offsetWidth (gh-4029)
-		div.style.position = "absolute";
-		scrollboxSizeVal = roundPixelMeasures( div.offsetWidth / 3 ) === 12;
-
-		documentElement.removeChild( container );
-
-		// Nullify the div so it wouldn't be stored in the memory and
-		// it will also be a sign that checks already performed
-		div = null;
-	}
-
-	function roundPixelMeasures( measure ) {
-		return Math.round( parseFloat( measure ) );
-	}
-
-	var pixelPositionVal, boxSizingReliableVal, scrollboxSizeVal, pixelBoxStylesVal,
-		reliableMarginLeftVal,
-		container = document.createElement( "div" ),
-		div = document.createElement( "div" );
-
-	// Finish early in limited (non-browser) environments
-	if ( !div.style ) {
-		return;
-	}
-
-	// Support: IE <=9 - 11 only
-	// Style of cloned element affects source element cloned (#8908)
-	div.style.backgroundClip = "content-box";
-	div.cloneNode( true ).style.backgroundClip = "";
-	support.clearCloneStyle = div.style.backgroundClip === "content-box";
-
-	jQuery.extend( support, {
-		boxSizingReliable: function() {
-			computeStyleTests();
-			return boxSizingReliableVal;
-		},
-		pixelBoxStyles: function() {
-			computeStyleTests();
-			return pixelBoxStylesVal;
-		},
-		pixelPosition: function() {
-			computeStyleTests();
-			return pixelPositionVal;
-		},
-		reliableMarginLeft: function() {
-			computeStyleTests();
-			return reliableMarginLeftVal;
-		},
-		scrollboxSize: function() {
-			computeStyleTests();
-			return scrollboxSizeVal;
-		}
-	} );
-} )();
-
-
-function curCSS( elem, name, computed ) {
-	var width, minWidth, maxWidth, ret,
-
-		// Support: Firefox 51+
-		// Retrieving style before computed somehow
-		// fixes an issue with getting wrong values
-		// on detached elements
-		style = elem.style;
-
-	computed = computed || getStyles( elem );
-
-	// getPropertyValue is needed for:
-	//   .css('filter') (IE 9 only, #12537)
-	//   .css('--customProperty) (#3144)
-	if ( computed ) {
-		ret = computed.getPropertyValue( name ) || computed[ name ];
-
-		if ( ret === "" && !isAttached( elem ) ) {
-			ret = jQuery.style( elem, name );
-		}
-
-		// A tribute to the "awesome hack by Dean Edwards"
-		// Android Browser returns percentage for some values,
-		// but width seems to be reliably pixels.
-		// This is against the CSSOM draft spec:
-		// https://drafts.csswg.org/cssom/#resolved-values
-		if ( !support.pixelBoxStyles() && rnumnonpx.test( ret ) && rboxStyle.test( name ) ) {
-
-			// Remember the original values
-			width = style.width;
-			minWidth = style.minWidth;
-			maxWidth = style.maxWidth;
-
-			// Put in the new values to get a computed value out
-			style.minWidth = style.maxWidth = style.width = ret;
-			ret = computed.width;
-
-			// Revert the changed values
-			style.width = width;
-			style.minWidth = minWidth;
-			style.maxWidth = maxWidth;
-		}
-	}
-
-	return ret !== undefined ?
-
-		// Support: IE <=9 - 11 only
-		// IE returns zIndex value as an integer.
-		ret + "" :
-		ret;
-}
-
-
-function addGetHookIf( conditionFn, hookFn ) {
-
-	// Define the hook, we'll check on the first run if it's really needed.
-	return {
-		get: function() {
-			if ( conditionFn() ) {
-
-				// Hook not needed (or it's not possible to use it due
-				// to missing dependency), remove it.
-				delete this.get;
-				return;
-			}
-
-			// Hook needed; redefine it so that the support test is not executed again.
-			return ( this.get = hookFn ).apply( this, arguments );
-		}
-	};
-}
-
-
-var cssPrefixes = [ "Webkit", "Moz", "ms" ],
-	emptyStyle = document.createElement( "div" ).style,
-	vendorProps = {};
-
-// Return a vendor-prefixed property or undefined
-function vendorPropName( name ) {
-
-	// Check for vendor prefixed names
-	var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
-		i = cssPrefixes.length;
-
-	while ( i-- ) {
-		name = cssPrefixes[ i ] + capName;
-		if ( name in emptyStyle ) {
-			return name;
-		}
-	}
-}
-
-// Return a potentially-mapped jQuery.cssProps or vendor prefixed property
-function finalPropName( name ) {
-	var final = jQuery.cssProps[ name ] || vendorProps[ name ];
-
-	if ( final ) {
-		return final;
-	}
-	if ( name in emptyStyle ) {
-		return name;
-	}
-	return vendorProps[ name ] = vendorPropName( name ) || name;
-}
-
-
-var
-
-	// Swappable if display is none or starts with table
-	// except "table", "table-cell", or "table-caption"
-	// See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
-	rdisplayswap = /^(none|table(?!-c[ea]).+)/,
-	rcustomProp = /^--/,
-	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
-	cssNormalTransform = {
-		letterSpacing: "0",
-		fontWeight: "400"
-	};
-
-function setPositiveNumber( elem, value, subtract ) {
-
-	// Any relative (+/-) values have already been
-	// normalized at this point
-	var matches = rcssNum.exec( value );
-	return matches ?
-
-		// Guard against undefined "subtract", e.g., when used as in cssHooks
-		Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
-		value;
-}
-
-function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computedVal ) {
-	var i = dimension === "width" ? 1 : 0,
-		extra = 0,
-		delta = 0;
-
-	// Adjustment may not be necessary
-	if ( box === ( isBorderBox ? "border" : "content" ) ) {
-		return 0;
-	}
-
-	for ( ; i < 4; i += 2 ) {
-
-		// Both box models exclude margin
-		if ( box === "margin" ) {
-			delta += jQuery.css( elem, box + cssExpand[ i ], true, styles );
-		}
-
-		// If we get here with a content-box, we're seeking "padding" or "border" or "margin"
-		if ( !isBorderBox ) {
-
-			// Add padding
-			delta += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
-
-			// For "border" or "margin", add border
-			if ( box !== "padding" ) {
-				delta += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
-
-			// But still keep track of it otherwise
-			} else {
-				extra += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
-			}
-
-		// If we get here with a border-box (content + padding + border), we're seeking "content" or
-		// "padding" or "margin"
-		} else {
-
-			// For "content", subtract padding
-			if ( box === "content" ) {
-				delta -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
-			}
-
-			// For "content" or "padding", subtract border
-			if ( box !== "margin" ) {
-				delta -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
-			}
-		}
-	}
-
-	// Account for positive content-box scroll gutter when requested by providing computedVal
-	if ( !isBorderBox && computedVal >= 0 ) {
-
-		// offsetWidth/offsetHeight is a rounded sum of content, padding, scroll gutter, and border
-		// Assuming integer scroll gutter, subtract the rest and round down
-		delta += Math.max( 0, Math.ceil(
-			elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
-			computedVal -
-			delta -
-			extra -
-			0.5
-
-		// If offsetWidth/offsetHeight is unknown, then we can't determine content-box scroll gutter
-		// Use an explicit zero to avoid NaN (gh-3964)
-		) ) || 0;
-	}
-
-	return delta;
-}
-
-function getWidthOrHeight( elem, dimension, extra ) {
-
-	// Start with computed style
-	var styles = getStyles( elem ),
-
-		// To avoid forcing a reflow, only fetch boxSizing if we need it (gh-4322).
-		// Fake content-box until we know it's needed to know the true value.
-		boxSizingNeeded = !support.boxSizingReliable() || extra,
-		isBorderBox = boxSizingNeeded &&
-			jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
-		valueIsBorderBox = isBorderBox,
-
-		val = curCSS( elem, dimension, styles ),
-		offsetProp = "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 );
-
-	// Support: Firefox <=54
-	// Return a confounding non-pixel value or feign ignorance, as appropriate.
-	if ( rnumnonpx.test( val ) ) {
-		if ( !extra ) {
-			return val;
-		}
-		val = "auto";
-	}
-
-
-	// Fall back to offsetWidth/offsetHeight when value is "auto"
-	// This happens for inline elements with no explicit setting (gh-3571)
-	// Support: Android <=4.1 - 4.3 only
-	// Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602)
-	// Support: IE 9-11 only
-	// Also use offsetWidth/offsetHeight for when box sizing is unreliable
-	// We use getClientRects() to check for hidden/disconnected.
-	// In those cases, the computed value can be trusted to be border-box
-	if ( ( !support.boxSizingReliable() && isBorderBox ||
-		val === "auto" ||
-		!parseFloat( val ) && jQuery.css( elem, "display", false, styles ) === "inline" ) &&
-		elem.getClientRects().length ) {
-
-		isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
-
-		// Where available, offsetWidth/offsetHeight approximate border box dimensions.
-		// Where not available (e.g., SVG), assume unreliable box-sizing and interpret the
-		// retrieved value as a content box dimension.
-		valueIsBorderBox = offsetProp in elem;
-		if ( valueIsBorderBox ) {
-			val = elem[ offsetProp ];
-		}
-	}
-
-	// Normalize "" and auto
-	val = parseFloat( val ) || 0;
-
-	// Adjust for the element's box model
-	return ( val +
-		boxModelAdjustment(
-			elem,
-			dimension,
-			extra || ( isBorderBox ? "border" : "content" ),
-			valueIsBorderBox,
-			styles,
-
-			// Provide the current computed size to request scroll gutter calculation (gh-3589)
-			val
-		)
-	) + "px";
-}
-
-jQuery.extend( {
-
-	// Add in style property hooks for overriding the default
-	// behavior of getting and setting a style property
-	cssHooks: {
-		opacity: {
-			get: function( elem, computed ) {
-				if ( computed ) {
-
-					// We should always get a number back from opacity
-					var ret = curCSS( elem, "opacity" );
-					return ret === "" ? "1" : ret;
-				}
-			}
-		}
-	},
-
-	// Don't automatically add "px" to these possibly-unitless properties
-	cssNumber: {
-		"animationIterationCount": true,
-		"columnCount": true,
-		"fillOpacity": true,
-		"flexGrow": true,
-		"flexShrink": true,
-		"fontWeight": true,
-		"gridArea": true,
-		"gridColumn": true,
-		"gridColumnEnd": true,
-		"gridColumnStart": true,
-		"gridRow": true,
-		"gridRowEnd": true,
-		"gridRowStart": true,
-		"lineHeight": true,
-		"opacity": true,
-		"order": true,
-		"orphans": true,
-		"widows": true,
-		"zIndex": true,
-		"zoom": true
-	},
-
-	// Add in properties whose names you wish to fix before
-	// setting or getting the value
-	cssProps: {},
-
-	// Get and set the style property on a DOM Node
-	style: function( elem, name, value, extra ) {
-
-		// Don't set styles on text and comment nodes
-		if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
-			return;
-		}
-
-		// Make sure that we're working with the right name
-		var ret, type, hooks,
-			origName = camelCase( name ),
-			isCustomProp = rcustomProp.test( name ),
-			style = elem.style;
-
-		// Make sure that we're working with the right name. We don't
-		// want to query the value if it is a CSS custom property
-		// since they are user-defined.
-		if ( !isCustomProp ) {
-			name = finalPropName( origName );
-		}
-
-		// Gets hook for the prefixed version, then unprefixed version
-		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
-
-		// Check if we're setting a value
-		if ( value !== undefined ) {
-			type = typeof value;
-
-			// Convert "+=" or "-=" to relative numbers (#7345)
-			if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
-				value = adjustCSS( elem, name, ret );
-
-				// Fixes bug #9237
-				type = "number";
-			}
-
-			// Make sure that null and NaN values aren't set (#7116)
-			if ( value == null || value !== value ) {
-				return;
-			}
-
-			// If a number was passed in, add the unit (except for certain CSS properties)
-			// The isCustomProp check can be removed in jQuery 4.0 when we only auto-append
-			// "px" to a few hardcoded values.
-			if ( type === "number" && !isCustomProp ) {
-				value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
-			}
-
-			// background-* props affect original clone's values
-			if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
-				style[ name ] = "inherit";
-			}
-
-			// If a hook was provided, use that value, otherwise just set the specified value
-			if ( !hooks || !( "set" in hooks ) ||
-				( value = hooks.set( elem, value, extra ) ) !== undefined ) {
-
-				if ( isCustomProp ) {
-					style.setProperty( name, value );
-				} else {
-					style[ name ] = value;
-				}
-			}
-
-		} else {
-
-			// If a hook was provided get the non-computed value from there
-			if ( hooks && "get" in hooks &&
-				( ret = hooks.get( elem, false, extra ) ) !== undefined ) {
-
-				return ret;
-			}
-
-			// Otherwise just get the value from the style object
-			return style[ name ];
-		}
-	},
-
-	css: function( elem, name, extra, styles ) {
-		var val, num, hooks,
-			origName = camelCase( name ),
-			isCustomProp = rcustomProp.test( name );
-
-		// Make sure that we're working with the right name. We don't
-		// want to modify the value if it is a CSS custom property
-		// since they are user-defined.
-		if ( !isCustomProp ) {
-			name = finalPropName( origName );
-		}
-
-		// Try prefixed name followed by the unprefixed name
-		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
-
-		// If a hook was provided get the computed value from there
-		if ( hooks && "get" in hooks ) {
-			val = hooks.get( elem, true, extra );
-		}
-
-		// Otherwise, if a way to get the computed value exists, use that
-		if ( val === undefined ) {
-			val = curCSS( elem, name, styles );
-		}
-
-		// Convert "normal" to computed value
-		if ( val === "normal" && name in cssNormalTransform ) {
-			val = cssNormalTransform[ name ];
-		}
-
-		// Make numeric if forced or a qualifier was provided and val looks numeric
-		if ( extra === "" || extra ) {
-			num = parseFloat( val );
-			return extra === true || isFinite( num ) ? num || 0 : val;
-		}
-
-		return val;
-	}
-} );
-
-jQuery.each( [ "height", "width" ], function( i, dimension ) {
-	jQuery.cssHooks[ dimension ] = {
-		get: function( elem, computed, extra ) {
-			if ( computed ) {
-
-				// Certain elements can have dimension info if we invisibly show them
-				// but it must have a current display style that would benefit
-				return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&
-
-					// Support: Safari 8+
-					// Table columns in Safari have non-zero offsetWidth & zero
-					// getBoundingClientRect().width unless display is changed.
-					// Support: IE <=11 only
-					// Running getBoundingClientRect on a disconnected node
-					// in IE throws an error.
-					( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
-						swap( elem, cssShow, function() {
-							return getWidthOrHeight( elem, dimension, extra );
-						} ) :
-						getWidthOrHeight( elem, dimension, extra );
-			}
-		},
-
-		set: function( elem, value, extra ) {
-			var matches,
-				styles = getStyles( elem ),
-
-				// Only read styles.position if the test has a chance to fail
-				// to avoid forcing a reflow.
-				scrollboxSizeBuggy = !support.scrollboxSize() &&
-					styles.position === "absolute",
-
-				// To avoid forcing a reflow, only fetch boxSizing if we need it (gh-3991)
-				boxSizingNeeded = scrollboxSizeBuggy || extra,
-				isBorderBox = boxSizingNeeded &&
-					jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
-				subtract = extra ?
-					boxModelAdjustment(
-						elem,
-						dimension,
-						extra,
-						isBorderBox,
-						styles
-					) :
-					0;
-
-			// Account for unreliable border-box dimensions by comparing offset* to computed and
-			// faking a content-box to get border and padding (gh-3699)
-			if ( isBorderBox && scrollboxSizeBuggy ) {
-				subtract -= Math.ceil(
-					elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
-					parseFloat( styles[ dimension ] ) -
-					boxModelAdjustment( elem, dimension, "border", false, styles ) -
-					0.5
-				);
-			}
-
-			// Convert to pixels if value adjustment is needed
-			if ( subtract && ( matches = rcssNum.exec( value ) ) &&
-				( matches[ 3 ] || "px" ) !== "px" ) {
-
-				elem.style[ dimension ] = value;
-				value = jQuery.css( elem, dimension );
-			}
-
-			return setPositiveNumber( elem, value, subtract );
-		}
-	};
-} );
-
-jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
-	function( elem, computed ) {
-		if ( computed ) {
-			return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
-				elem.getBoundingClientRect().left -
-					swap( elem, { marginLeft: 0 }, function() {
-						return elem.getBoundingClientRect().left;
-					} )
-				) + "px";
-		}
-	}
-);
-
-// These hooks are used by animate to expand properties
-jQuery.each( {
-	margin: "",
-	padding: "",
-	border: "Width"
-}, function( prefix, suffix ) {
-	jQuery.cssHooks[ prefix + suffix ] = {
-		expand: function( value ) {
-			var i = 0,
-				expanded = {},
-
-				// Assumes a single number if not a string
-				parts = typeof value === "string" ? value.split( " " ) : [ value ];
-
-			for ( ; i < 4; i++ ) {
-				expanded[ prefix + cssExpand[ i ] + suffix ] =
-					parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
-			}
-
-			return expanded;
-		}
-	};
-
-	if ( prefix !== "margin" ) {
-		jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
-	}
-} );
-
-jQuery.fn.extend( {
-	css: function( name, value ) {
-		return access( this, function( elem, name, value ) {
-			var styles, len,
-				map = {},
-				i = 0;
-
-			if ( Array.isArray( name ) ) {
-				styles = getStyles( elem );
-				len = name.length;
-
-				for ( ; i < len; i++ ) {
-					map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
-				}
-
-				return map;
-			}
-
-			return value !== undefined ?
-				jQuery.style( elem, name, value ) :
-				jQuery.css( elem, name );
-		}, name, value, arguments.length > 1 );
-	}
-} );
-
-
-function Tween( elem, options, prop, end, easing ) {
-	return new Tween.prototype.init( elem, options, prop, end, easing );
-}
-jQuery.Tween = Tween;
-
-Tween.prototype = {
-	constructor: Tween,
-	init: function( elem, options, prop, end, easing, unit ) {
-		this.elem = elem;
-		this.prop = prop;
-		this.easing = easing || jQuery.easing._default;
-		this.options = options;
-		this.start = this.now = this.cur();
-		this.end = end;
-		this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
-	},
-	cur: function() {
-		var hooks = Tween.propHooks[ this.prop ];
-
-		return hooks && hooks.get ?
-			hooks.get( this ) :
-			Tween.propHooks._default.get( this );
-	},
-	run: function( percent ) {
-		var eased,
-			hooks = Tween.propHooks[ this.prop ];
-
-		if ( this.options.duration ) {
-			this.pos = eased = jQuery.easing[ this.easing ](
-				percent, this.options.duration * percent, 0, 1, this.options.duration
-			);
-		} else {
-			this.pos = eased = percent;
-		}
-		this.now = ( this.end - this.start ) * eased + this.start;
-
-		if ( this.options.step ) {
-			this.options.step.call( this.elem, this.now, this );
-		}
-
-		if ( hooks && hooks.set ) {
-			hooks.set( this );
-		} else {
-			Tween.propHooks._default.set( this );
-		}
-		return this;
-	}
-};
-
-Tween.prototype.init.prototype = Tween.prototype;
-
-Tween.propHooks = {
-	_default: {
-		get: function( tween ) {
-			var result;
-
-			// Use a property on the element directly when it is not a DOM element,
-			// or when there is no matching style property that exists.
-			if ( tween.elem.nodeType !== 1 ||
-				tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
-				return tween.elem[ tween.prop ];
-			}
-
-			// Passing an empty string as a 3rd parameter to .css will automatically
-			// attempt a parseFloat and fallback to a string if the parse fails.
-			// Simple values such as "10px" are parsed to Float;
-			// complex values such as "rotate(1rad)" are returned as-is.
-			result = jQuery.css( tween.elem, tween.prop, "" );
-
-			// Empty strings, null, undefined and "auto" are converted to 0.
-			return !result || result === "auto" ? 0 : result;
-		},
-		set: function( tween ) {
-
-			// Use step hook for back compat.
-			// Use cssHook if its there.
-			// Use .style if available and use plain properties where available.
-			if ( jQuery.fx.step[ tween.prop ] ) {
-				jQuery.fx.step[ tween.prop ]( tween );
-			} else if ( tween.elem.nodeType === 1 && (
-					jQuery.cssHooks[ tween.prop ] ||
-					tween.elem.style[ finalPropName( tween.prop ) ] != null ) ) {
-				jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
-			} else {
-				tween.elem[ tween.prop ] = tween.now;
-			}
-		}
-	}
-};
-
-// Support: IE <=9 only
-// Panic based approach to setting things on disconnected nodes
-Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
-	set: function( tween ) {
-		if ( tween.elem.nodeType && tween.elem.parentNode ) {
-			tween.elem[ tween.prop ] = tween.now;
-		}
-	}
-};
-
-jQuery.easing = {
-	linear: function( p ) {
-		return p;
-	},
-	swing: function( p ) {
-		return 0.5 - Math.cos( p * Math.PI ) / 2;
-	},
-	_default: "swing"
-};
-
-jQuery.fx = Tween.prototype.init;
-
-// Back compat <1.8 extension point
-jQuery.fx.step = {};
-
-
-
-
-var
-	fxNow, inProgress,
-	rfxtypes = /^(?:toggle|show|hide)$/,
-	rrun = /queueHooks$/;
-
-function schedule() {
-	if ( inProgress ) {
-		if ( document.hidden === false && window.requestAnimationFrame ) {
-			window.requestAnimationFrame( schedule );
-		} else {
-			window.setTimeout( schedule, jQuery.fx.interval );
-		}
-
-		jQuery.fx.tick();
-	}
-}
-
-// Animations created synchronously will run synchronously
-function createFxNow() {
-	window.setTimeout( function() {
-		fxNow = undefined;
-	} );
-	return ( fxNow = Date.now() );
-}
-
-// Generate parameters to create a standard animation
-function genFx( type, includeWidth ) {
-	var which,
-		i = 0,
-		attrs = { height: type };
-
-	// If we include width, step value is 1 to do all cssExpand values,
-	// otherwise step value is 2 to skip over Left and Right
-	includeWidth = includeWidth ? 1 : 0;
-	for ( ; i < 4; i += 2 - includeWidth ) {
-		which = cssExpand[ i ];
-		attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
-	}
-
-	if ( includeWidth ) {
-		attrs.opacity = attrs.width = type;
-	}
-
-	return attrs;
-}
-
-function createTween( value, prop, animation ) {
-	var tween,
-		collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
-		index = 0,
-		length = collection.length;
-	for ( ; index < length; index++ ) {
-		if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {
-
-			// We're done with this property
-			return tween;
-		}
-	}
-}
-
-function defaultPrefilter( elem, props, opts ) {
-	var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
-		isBox = "width" in props || "height" in props,
-		anim = this,
-		orig = {},
-		style = elem.style,
-		hidden = elem.nodeType && isHiddenWithinTree( elem ),
-		dataShow = dataPriv.get( elem, "fxshow" );
-
-	// Queue-skipping animations hijack the fx hooks
-	if ( !opts.queue ) {
-		hooks = jQuery._queueHooks( elem, "fx" );
-		if ( hooks.unqueued == null ) {
-			hooks.unqueued = 0;
-			oldfire = hooks.empty.fire;
-			hooks.empty.fire = function() {
-				if ( !hooks.unqueued ) {
-					oldfire();
-				}
-			};
-		}
-		hooks.unqueued++;
-
-		anim.always( function() {
-
-			// Ensure the complete handler is called before this completes
-			anim.always( function() {
-				hooks.unqueued--;
-				if ( !jQuery.queue( elem, "fx" ).length ) {
-					hooks.empty.fire();
-				}
-			} );
-		} );
-	}
-
-	// Detect show/hide animations
-	for ( prop in props ) {
-		value = props[ prop ];
-		if ( rfxtypes.test( value ) ) {
-			delete props[ prop ];
-			toggle = toggle || value === "toggle";
-			if ( value === ( hidden ? "hide" : "show" ) ) {
-
-				// Pretend to be hidden if this is a "show" and
-				// there is still data from a stopped show/hide
-				if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
-					hidden = true;
-
-				// Ignore all other no-op show/hide data
-				} else {
-					continue;
-				}
-			}
-			orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
-		}
-	}
-
-	// Bail out if this is a no-op like .hide().hide()
-	propTween = !jQuery.isEmptyObject( props );
-	if ( !propTween && jQuery.isEmptyObject( orig ) ) {
-		return;
-	}
-
-	// Restrict "overflow" and "display" styles during box animations
-	if ( isBox && elem.nodeType === 1 ) {
-
-		// Support: IE <=9 - 11, Edge 12 - 15
-		// Record all 3 overflow attributes because IE does not infer the shorthand
-		// from identically-valued overflowX and overflowY and Edge just mirrors
-		// the overflowX value there.
-		opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
-
-		// Identify a display type, preferring old show/hide data over the CSS cascade
-		restoreDisplay = dataShow && dataShow.display;
-		if ( restoreDisplay == null ) {
-			restoreDisplay = dataPriv.get( elem, "display" );
-		}
-		display = jQuery.css( elem, "display" );
-		if ( display === "none" ) {
-			if ( restoreDisplay ) {
-				display = restoreDisplay;
-			} else {
-
-				// Get nonempty value(s) by temporarily forcing visibility
-				showHide( [ elem ], true );
-				restoreDisplay = elem.style.display || restoreDisplay;
-				display = jQuery.css( elem, "display" );
-				showHide( [ elem ] );
-			}
-		}
-
-		// Animate inline elements as inline-block
-		if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
-			if ( jQuery.css( elem, "float" ) === "none" ) {
-
-				// Restore the original display value at the end of pure show/hide animations
-				if ( !propTween ) {
-					anim.done( function() {
-						style.display = restoreDisplay;
-					} );
-					if ( restoreDisplay == null ) {
-						display = style.display;
-						restoreDisplay = display === "none" ? "" : display;
-					}
-				}
-				style.display = "inline-block";
-			}
-		}
-	}
-
-	if ( opts.overflow ) {
-		style.overflow = "hidden";
-		anim.always( function() {
-			style.overflow = opts.overflow[ 0 ];
-			style.overflowX = opts.overflow[ 1 ];
-			style.overflowY = opts.overflow[ 2 ];
-		} );
-	}
-
-	// Implement show/hide animations
-	propTween = false;
-	for ( prop in orig ) {
-
-		// General show/hide setup for this element animation
-		if ( !propTween ) {
-			if ( dataShow ) {
-				if ( "hidden" in dataShow ) {
-					hidden = dataShow.hidden;
-				}
-			} else {
-				dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
-			}
-
-			// Store hidden/visible for toggle so `.stop().toggle()` "reverses"
-			if ( toggle ) {
-				dataShow.hidden = !hidden;
-			}
-
-			// Show elements before animating them
-			if ( hidden ) {
-				showHide( [ elem ], true );
-			}
-
-			/* eslint-disable no-loop-func */
-
-			anim.done( function() {
-
-			/* eslint-enable no-loop-func */
-
-				// The final step of a "hide" animation is actually hiding the element
-				if ( !hidden ) {
-					showHide( [ elem ] );
-				}
-				dataPriv.remove( elem, "fxshow" );
-				for ( prop in orig ) {
-					jQuery.style( elem, prop, orig[ prop ] );
-				}
-			} );
-		}
-
-		// Per-property setup
-		propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
-		if ( !( prop in dataShow ) ) {
-			dataShow[ prop ] = propTween.start;
-			if ( hidden ) {
-				propTween.end = propTween.start;
-				propTween.start = 0;
-			}
-		}
-	}
-}
-
-function propFilter( props, specialEasing ) {
-	var index, name, easing, value, hooks;
-
-	// camelCase, specialEasing and expand cssHook pass
-	for ( index in props ) {
-		name = camelCase( index );
-		easing = specialEasing[ name ];
-		value = props[ index ];
-		if ( Array.isArray( value ) ) {
-			easing = value[ 1 ];
-			value = props[ index ] = value[ 0 ];
-		}
-
-		if ( index !== name ) {
-			props[ name ] = value;
-			delete props[ index ];
-		}
-
-		hooks = jQuery.cssHooks[ name ];
-		if ( hooks && "expand" in hooks ) {
-			value = hooks.expand( value );
-			delete props[ name ];
-
-			// Not quite $.extend, this won't overwrite existing keys.
-			// Reusing 'index' because we have the correct "name"
-			for ( index in value ) {
-				if ( !( index in props ) ) {
-					props[ index ] = value[ index ];
-					specialEasing[ index ] = easing;
-				}
-			}
-		} else {
-			specialEasing[ name ] = easing;
-		}
-	}
-}
-
-function Animation( elem, properties, options ) {
-	var result,
-		stopped,
-		index = 0,
-		length = Animation.prefilters.length,
-		deferred = jQuery.Deferred().always( function() {
-
-			// Don't match elem in the :animated selector
-			delete tick.elem;
-		} ),
-		tick = function() {
-			if ( stopped ) {
-				return false;
-			}
-			var currentTime = fxNow || createFxNow(),
-				remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
-
-				// Support: Android 2.3 only
-				// Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
-				temp = remaining / animation.duration || 0,
-				percent = 1 - temp,
-				index = 0,
-				length = animation.tweens.length;
-
-			for ( ; index < length; index++ ) {
-				animation.tweens[ index ].run( percent );
-			}
-
-			deferred.notifyWith( elem, [ animation, percent, remaining ] );
-
-			// If there's more to do, yield
-			if ( percent < 1 && length ) {
-				return remaining;
-			}
-
-			// If this was an empty animation, synthesize a final progress notification
-			if ( !length ) {
-				deferred.notifyWith( elem, [ animation, 1, 0 ] );
-			}
-
-			// Resolve the animation and report its conclusion
-			deferred.resolveWith( elem, [ animation ] );
-			return false;
-		},
-		animation = deferred.promise( {
-			elem: elem,
-			props: jQuery.extend( {}, properties ),
-			opts: jQuery.extend( true, {
-				specialEasing: {},
-				easing: jQuery.easing._default
-			}, options ),
-			originalProperties: properties,
-			originalOptions: options,
-			startTime: fxNow || createFxNow(),
-			duration: options.duration,
-			tweens: [],
-			createTween: function( prop, end ) {
-				var tween = jQuery.Tween( elem, animation.opts, prop, end,
-						animation.opts.specialEasing[ prop ] || animation.opts.easing );
-				animation.tweens.push( tween );
-				return tween;
-			},
-			stop: function( gotoEnd ) {
-				var index = 0,
-
-					// If we are going to the end, we want to run all the tweens
-					// otherwise we skip this part
-					length = gotoEnd ? animation.tweens.length : 0;
-				if ( stopped ) {
-					return this;
-				}
-				stopped = true;
-				for ( ; index < length; index++ ) {
-					animation.tweens[ index ].run( 1 );
-				}
-
-				// Resolve when we played the last frame; otherwise, reject
-				if ( gotoEnd ) {
-					deferred.notifyWith( elem, [ animation, 1, 0 ] );
-					deferred.resolveWith( elem, [ animation, gotoEnd ] );
-				} else {
-					deferred.rejectWith( elem, [ animation, gotoEnd ] );
-				}
-				return this;
-			}
-		} ),
-		props = animation.props;
-
-	propFilter( props, animation.opts.specialEasing );
-
-	for ( ; index < length; index++ ) {
-		result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
-		if ( result ) {
-			if ( isFunction( result.stop ) ) {
-				jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
-					result.stop.bind( result );
-			}
-			return result;
-		}
-	}
-
-	jQuery.map( props, createTween, animation );
-
-	if ( isFunction( animation.opts.start ) ) {
-		animation.opts.start.call( elem, animation );
-	}
-
-	// Attach callbacks from options
-	animation
-		.progress( animation.opts.progress )
-		.done( animation.opts.done, animation.opts.complete )
-		.fail( animation.opts.fail )
-		.always( animation.opts.always );
-
-	jQuery.fx.timer(
-		jQuery.extend( tick, {
-			elem: elem,
-			anim: animation,
-			queue: animation.opts.queue
-		} )
-	);
-
-	return animation;
-}
-
-jQuery.Animation = jQuery.extend( Animation, {
-
-	tweeners: {
-		"*": [ function( prop, value ) {
-			var tween = this.createTween( prop, value );
-			adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
-			return tween;
-		} ]
-	},
-
-	tweener: function( props, callback ) {
-		if ( isFunction( props ) ) {
-			callback = props;
-			props = [ "*" ];
-		} else {
-			props = props.match( rnothtmlwhite );
-		}
-
-		var prop,
-			index = 0,
-			length = props.length;
-
-		for ( ; index < length; index++ ) {
-			prop = props[ index ];
-			Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
-			Animation.tweeners[ prop ].unshift( callback );
-		}
-	},
-
-	prefilters: [ defaultPrefilter ],
-
-	prefilter: function( callback, prepend ) {
-		if ( prepend ) {
-			Animation.prefilters.unshift( callback );
-		} else {
-			Animation.prefilters.push( callback );
-		}
-	}
-} );
-
-jQuery.speed = function( speed, easing, fn ) {
-	var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
-		complete: fn || !fn && easing ||
-			isFunction( speed ) && speed,
-		duration: speed,
-		easing: fn && easing || easing && !isFunction( easing ) && easing
-	};
-
-	// Go to the end state if fx are off
-	if ( jQuery.fx.off ) {
-		opt.duration = 0;
-
-	} else {
-		if ( typeof opt.duration !== "number" ) {
-			if ( opt.duration in jQuery.fx.speeds ) {
-				opt.duration = jQuery.fx.speeds[ opt.duration ];
-
-			} else {
-				opt.duration = jQuery.fx.speeds._default;
-			}
-		}
-	}
-
-	// Normalize opt.queue - true/undefined/null -> "fx"
-	if ( opt.queue == null || opt.queue === true ) {
-		opt.queue = "fx";
-	}
-
-	// Queueing
-	opt.old = opt.complete;
-
-	opt.complete = function() {
-		if ( isFunction( opt.old ) ) {
-			opt.old.call( this );
-		}
-
-		if ( opt.queue ) {
-			jQuery.dequeue( this, opt.queue );
-		}
-	};
-
-	return opt;
-};
-
-jQuery.fn.extend( {
-	fadeTo: function( speed, to, easing, callback ) {
-
-		// Show any hidden elements after setting opacity to 0
-		return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()
-
-			// Animate to the value specified
-			.end().animate( { opacity: to }, speed, easing, callback );
-	},
-	animate: function( prop, speed, easing, callback ) {
-		var empty = jQuery.isEmptyObject( prop ),
-			optall = jQuery.speed( speed, easing, callback ),
-			doAnimation = function() {
-
-				// Operate on a copy of prop so per-property easing won't be lost
-				var anim = Animation( this, jQuery.extend( {}, prop ), optall );
-
-				// Empty animations, or finishing resolves immediately
-				if ( empty || dataPriv.get( this, "finish" ) ) {
-					anim.stop( true );
-				}
-			};
-			doAnimation.finish = doAnimation;
-
-		return empty || optall.queue === false ?
-			this.each( doAnimation ) :
-			this.queue( optall.queue, doAnimation );
-	},
-	stop: function( type, clearQueue, gotoEnd ) {
-		var stopQueue = function( hooks ) {
-			var stop = hooks.stop;
-			delete hooks.stop;
-			stop( gotoEnd );
-		};
-
-		if ( typeof type !== "string" ) {
-			gotoEnd = clearQueue;
-			clearQueue = type;
-			type = undefined;
-		}
-		if ( clearQueue && type !== false ) {
-			this.queue( type || "fx", [] );
-		}
-
-		return this.each( function() {
-			var dequeue = true,
-				index = type != null && type + "queueHooks",
-				timers = jQuery.timers,
-				data = dataPriv.get( this );
-
-			if ( index ) {
-				if ( data[ index ] && data[ index ].stop ) {
-					stopQueue( data[ index ] );
-				}
-			} else {
-				for ( index in data ) {
-					if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
-						stopQueue( data[ index ] );
-					}
-				}
-			}
-
-			for ( index = timers.length; index--; ) {
-				if ( timers[ index ].elem === this &&
-					( type == null || timers[ index ].queue === type ) ) {
-
-					timers[ index ].anim.stop( gotoEnd );
-					dequeue = false;
-					timers.splice( index, 1 );
-				}
-			}
-
-			// Start the next in the queue if the last step wasn't forced.
-			// Timers currently will call their complete callbacks, which
-			// will dequeue but only if they were gotoEnd.
-			if ( dequeue || !gotoEnd ) {
-				jQuery.dequeue( this, type );
-			}
-		} );
-	},
-	finish: function( type ) {
-		if ( type !== false ) {
-			type = type || "fx";
-		}
-		return this.each( function() {
-			var index,
-				data = dataPriv.get( this ),
-				queue = data[ type + "queue" ],
-				hooks = data[ type + "queueHooks" ],
-				timers = jQuery.timers,
-				length = queue ? queue.length : 0;
-
-			// Enable finishing flag on private data
-			data.finish = true;
-
-			// Empty the queue first
-			jQuery.queue( this, type, [] );
-
-			if ( hooks && hooks.stop ) {
-				hooks.stop.call( this, true );
-			}
-
-			// Look for any active animations, and finish them
-			for ( index = timers.length; index--; ) {
-				if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
-					timers[ index ].anim.stop( true );
-					timers.splice( index, 1 );
-				}
-			}
-
-			// Look for any animations in the old queue and finish them
-			for ( index = 0; index < length; index++ ) {
-				if ( queue[ index ] && queue[ index ].finish ) {
-					queue[ index ].finish.call( this );
-				}
-			}
-
-			// Turn off finishing flag
-			delete data.finish;
-		} );
-	}
-} );
-
-jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) {
-	var cssFn = jQuery.fn[ name ];
-	jQuery.fn[ name ] = function( speed, easing, callback ) {
-		return speed == null || typeof speed === "boolean" ?
-			cssFn.apply( this, arguments ) :
-			this.animate( genFx( name, true ), speed, easing, callback );
-	};
-} );
-
-// Generate shortcuts for custom animations
-jQuery.each( {
-	slideDown: genFx( "show" ),
-	slideUp: genFx( "hide" ),
-	slideToggle: genFx( "toggle" ),
-	fadeIn: { opacity: "show" },
-	fadeOut: { opacity: "hide" },
-	fadeToggle: { opacity: "toggle" }
-}, function( name, props ) {
-	jQuery.fn[ name ] = function( speed, easing, callback ) {
-		return this.animate( props, speed, easing, callback );
-	};
-} );
-
-jQuery.timers = [];
-jQuery.fx.tick = function() {
-	var timer,
-		i = 0,
-		timers = jQuery.timers;
-
-	fxNow = Date.now();
-
-	for ( ; i < timers.length; i++ ) {
-		timer = timers[ i ];
-
-		// Run the timer and safely remove it when done (allowing for external removal)
-		if ( !timer() && timers[ i ] === timer ) {
-			timers.splice( i--, 1 );
-		}
-	}
-
-	if ( !timers.length ) {
-		jQuery.fx.stop();
-	}
-	fxNow = undefined;
-};
-
-jQuery.fx.timer = function( timer ) {
-	jQuery.timers.push( timer );
-	jQuery.fx.start();
-};
-
-jQuery.fx.interval = 13;
-jQuery.fx.start = function() {
-	if ( inProgress ) {
-		return;
-	}
-
-	inProgress = true;
-	schedule();
-};
-
-jQuery.fx.stop = function() {
-	inProgress = null;
-};
-
-jQuery.fx.speeds = {
-	slow: 600,
-	fast: 200,
-
-	// Default speed
-	_default: 400
-};
-
-
-// Based off of the plugin by Clint Helfers, with permission.
-// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
-jQuery.fn.delay = function( time, type ) {
-	time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
-	type = type || "fx";
-
-	return this.queue( type, function( next, hooks ) {
-		var timeout = window.setTimeout( next, time );
-		hooks.stop = function() {
-			window.clearTimeout( timeout );
-		};
-	} );
-};
-
-
-( function() {
-	var input = document.createElement( "input" ),
-		select = document.createElement( "select" ),
-		opt = select.appendChild( document.createElement( "option" ) );
-
-	input.type = "checkbox";
-
-	// Support: Android <=4.3 only
-	// Default value for a checkbox should be "on"
-	support.checkOn = input.value !== "";
-
-	// Support: IE <=11 only
-	// Must access selectedIndex to make default options select
-	support.optSelected = opt.selected;
-
-	// Support: IE <=11 only
-	// An input loses its value after becoming a radio
-	input = document.createElement( "input" );
-	input.value = "t";
-	input.type = "radio";
-	support.radioValue = input.value === "t";
-} )();
-
-
-var boolHook,
-	attrHandle = jQuery.expr.attrHandle;
-
-jQuery.fn.extend( {
-	attr: function( name, value ) {
-		return access( this, jQuery.attr, name, value, arguments.length > 1 );
-	},
-
-	removeAttr: function( name ) {
-		return this.each( function() {
-			jQuery.removeAttr( this, name );
-		} );
-	}
-} );
-
-jQuery.extend( {
-	attr: function( elem, name, value ) {
-		var ret, hooks,
-			nType = elem.nodeType;
-
-		// Don't get/set attributes on text, comment and attribute nodes
-		if ( nType === 3 || nType === 8 || nType === 2 ) {
-			return;
-		}
-
-		// Fallback to prop when attributes are not supported
-		if ( typeof elem.getAttribute === "undefined" ) {
-			return jQuery.prop( elem, name, value );
-		}
-
-		// Attribute hooks are determined by the lowercase version
-		// Grab necessary hook if one is defined
-		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
-			hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
-				( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
-		}
-
-		if ( value !== undefined ) {
-			if ( value === null ) {
-				jQuery.removeAttr( elem, name );
-				return;
-			}
-
-			if ( hooks && "set" in hooks &&
-				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
-				return ret;
-			}
-
-			elem.setAttribute( name, value + "" );
-			return value;
-		}
-
-		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
-			return ret;
-		}
-
-		ret = jQuery.find.attr( elem, name );
-
-		// Non-existent attributes return null, we normalize to undefined
-		return ret == null ? undefined : ret;
-	},
-
-	attrHooks: {
-		type: {
-			set: function( elem, value ) {
-				if ( !support.radioValue && value === "radio" &&
-					nodeName( elem, "input" ) ) {
-					var val = elem.value;
-					elem.setAttribute( "type", value );
-					if ( val ) {
-						elem.value = val;
-					}
-					return value;
-				}
-			}
-		}
-	},
-
-	removeAttr: function( elem, value ) {
-		var name,
-			i = 0,
-
-			// Attribute names can contain non-HTML whitespace characters
-			// https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
-			attrNames = value && value.match( rnothtmlwhite );
-
-		if ( attrNames && elem.nodeType === 1 ) {
-			while ( ( name = attrNames[ i++ ] ) ) {
-				elem.removeAttribute( name );
-			}
-		}
-	}
-} );
-
-// Hooks for boolean attributes
-boolHook = {
-	set: function( elem, value, name ) {
-		if ( value === false ) {
-
-			// Remove boolean attributes when set to false
-			jQuery.removeAttr( elem, name );
-		} else {
-			elem.setAttribute( name, name );
-		}
-		return name;
-	}
-};
-
-jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
-	var getter = attrHandle[ name ] || jQuery.find.attr;
-
-	attrHandle[ name ] = function( elem, name, isXML ) {
-		var ret, handle,
-			lowercaseName = name.toLowerCase();
-
-		if ( !isXML ) {
-
-			// Avoid an infinite loop by temporarily removing this function from the getter
-			handle = attrHandle[ lowercaseName ];
-			attrHandle[ lowercaseName ] = ret;
-			ret = getter( elem, name, isXML ) != null ?
-				lowercaseName :
-				null;
-			attrHandle[ lowercaseName ] = handle;
-		}
-		return ret;
-	};
-} );
-
-
-
-
-var rfocusable = /^(?:input|select|textarea|button)$/i,
-	rclickable = /^(?:a|area)$/i;
-
-jQuery.fn.extend( {
-	prop: function( name, value ) {
-		return access( this, jQuery.prop, name, value, arguments.length > 1 );
-	},
-
-	removeProp: function( name ) {
-		return this.each( function() {
-			delete this[ jQuery.propFix[ name ] || name ];
-		} );
-	}
-} );
-
-jQuery.extend( {
-	prop: function( elem, name, value ) {
-		var ret, hooks,
-			nType = elem.nodeType;
-
-		// Don't get/set properties on text, comment and attribute nodes
-		if ( nType === 3 || nType === 8 || nType === 2 ) {
-			return;
-		}
-
-		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
-
-			// Fix name and attach hooks
-			name = jQuery.propFix[ name ] || name;
-			hooks = jQuery.propHooks[ name ];
-		}
-
-		if ( value !== undefined ) {
-			if ( hooks && "set" in hooks &&
-				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
-				return ret;
-			}
-
-			return ( elem[ name ] = value );
-		}
-
-		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
-			return ret;
-		}
-
-		return elem[ name ];
-	},
-
-	propHooks: {
-		tabIndex: {
-			get: function( elem ) {
-
-				// Support: IE <=9 - 11 only
-				// elem.tabIndex doesn't always return the
-				// correct value when it hasn't been explicitly set
-				// https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
-				// Use proper attribute retrieval(#12072)
-				var tabindex = jQuery.find.attr( elem, "tabindex" );
-
-				if ( tabindex ) {
-					return parseInt( tabindex, 10 );
-				}
-
-				if (
-					rfocusable.test( elem.nodeName ) ||
-					rclickable.test( elem.nodeName ) &&
-					elem.href
-				) {
-					return 0;
-				}
-
-				return -1;
-			}
-		}
-	},
-
-	propFix: {
-		"for": "htmlFor",
-		"class": "className"
-	}
-} );
-
-// Support: IE <=11 only
-// Accessing the selectedIndex property
-// forces the browser to respect setting selected
-// on the option
-// The getter ensures a default option is selected
-// when in an optgroup
-// eslint rule "no-unused-expressions" is disabled for this code
-// since it considers such accessions noop
-if ( !support.optSelected ) {
-	jQuery.propHooks.selected = {
-		get: function( elem ) {
-
-			/* eslint no-unused-expressions: "off" */
-
-			var parent = elem.parentNode;
-			if ( parent && parent.parentNode ) {
-				parent.parentNode.selectedIndex;
-			}
-			return null;
-		},
-		set: function( elem ) {
-
-			/* eslint no-unused-expressions: "off" */
-
-			var parent = elem.parentNode;
-			if ( parent ) {
-				parent.selectedIndex;
-
-				if ( parent.parentNode ) {
-					parent.parentNode.selectedIndex;
-				}
-			}
-		}
-	};
-}
-
-jQuery.each( [
-	"tabIndex",
-	"readOnly",
-	"maxLength",
-	"cellSpacing",
-	"cellPadding",
-	"rowSpan",
-	"colSpan",
-	"useMap",
-	"frameBorder",
-	"contentEditable"
-], function() {
-	jQuery.propFix[ this.toLowerCase() ] = this;
-} );
-
-
-
-
-	// Strip and collapse whitespace according to HTML spec
-	// https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace
-	function stripAndCollapse( value ) {
-		var tokens = value.match( rnothtmlwhite ) || [];
-		return tokens.join( " " );
-	}
-
-
-function getClass( elem ) {
-	return elem.getAttribute && elem.getAttribute( "class" ) || "";
-}
-
-function classesToArray( value ) {
-	if ( Array.isArray( value ) ) {
-		return value;
-	}
-	if ( typeof value === "string" ) {
-		return value.match( rnothtmlwhite ) || [];
-	}
-	return [];
-}
-
-jQuery.fn.extend( {
-	addClass: function( value ) {
-		var classes, elem, cur, curValue, clazz, j, finalValue,
-			i = 0;
-
-		if ( isFunction( value ) ) {
-			return this.each( function( j ) {
-				jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
-			} );
-		}
-
-		classes = classesToArray( value );
-
-		if ( classes.length ) {
-			while ( ( elem = this[ i++ ] ) ) {
-				curValue = getClass( elem );
-				cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
-
-				if ( cur ) {
-					j = 0;
-					while ( ( clazz = classes[ j++ ] ) ) {
-						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
-							cur += clazz + " ";
-						}
-					}
-
-					// Only assign if different to avoid unneeded rendering.
-					finalValue = stripAndCollapse( cur );
-					if ( curValue !== finalValue ) {
-						elem.setAttribute( "class", finalValue );
-					}
-				}
-			}
-		}
-
-		return this;
-	},
-
-	removeClass: function( value ) {
-		var classes, elem, cur, curValue, clazz, j, finalValue,
-			i = 0;
-
-		if ( isFunction( value ) ) {
-			return this.each( function( j ) {
-				jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
-			} );
-		}
-
-		if ( !arguments.length ) {
-			return this.attr( "class", "" );
-		}
-
-		classes = classesToArray( value );
-
-		if ( classes.length ) {
-			while ( ( elem = this[ i++ ] ) ) {
-				curValue = getClass( elem );
-
-				// This expression is here for better compressibility (see addClass)
-				cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
-
-				if ( cur ) {
-					j = 0;
-					while ( ( clazz = classes[ j++ ] ) ) {
-
-						// Remove *all* instances
-						while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
-							cur = cur.replace( " " + clazz + " ", " " );
-						}
-					}
-
-					// Only assign if different to avoid unneeded rendering.
-					finalValue = stripAndCollapse( cur );
-					if ( curValue !== finalValue ) {
-						elem.setAttribute( "class", finalValue );
-					}
-				}
-			}
-		}
-
-		return this;
-	},
-
-	toggleClass: function( value, stateVal ) {
-		var type = typeof value,
-			isValidValue = type === "string" || Array.isArray( value );
-
-		if ( typeof stateVal === "boolean" && isValidValue ) {
-			return stateVal ? this.addClass( value ) : this.removeClass( value );
-		}
-
-		if ( isFunction( value ) ) {
-			return this.each( function( i ) {
-				jQuery( this ).toggleClass(
-					value.call( this, i, getClass( this ), stateVal ),
-					stateVal
-				);
-			} );
-		}
-
-		return this.each( function() {
-			var className, i, self, classNames;
-
-			if ( isValidValue ) {
-
-				// Toggle individual class names
-				i = 0;
-				self = jQuery( this );
-				classNames = classesToArray( value );
-
-				while ( ( className = classNames[ i++ ] ) ) {
-
-					// Check each className given, space separated list
-					if ( self.hasClass( className ) ) {
-						self.removeClass( className );
-					} else {
-						self.addClass( className );
-					}
-				}
-
-			// Toggle whole class name
-			} else if ( value === undefined || type === "boolean" ) {
-				className = getClass( this );
-				if ( className ) {
-
-					// Store className if set
-					dataPriv.set( this, "__className__", className );
-				}
-
-				// If the element has a class name or if we're passed `false`,
-				// then remove the whole classname (if there was one, the above saved it).
-				// Otherwise bring back whatever was previously saved (if anything),
-				// falling back to the empty string if nothing was stored.
-				if ( this.setAttribute ) {
-					this.setAttribute( "class",
-						className || value === false ?
-						"" :
-						dataPriv.get( this, "__className__" ) || ""
-					);
-				}
-			}
-		} );
-	},
-
-	hasClass: function( selector ) {
-		var className, elem,
-			i = 0;
-
-		className = " " + selector + " ";
-		while ( ( elem = this[ i++ ] ) ) {
-			if ( elem.nodeType === 1 &&
-				( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
-					return true;
-			}
-		}
-
-		return false;
-	}
-} );
-
-
-
-
-var rreturn = /\r/g;
-
-jQuery.fn.extend( {
-	val: function( value ) {
-		var hooks, ret, valueIsFunction,
-			elem = this[ 0 ];
-
-		if ( !arguments.length ) {
-			if ( elem ) {
-				hooks = jQuery.valHooks[ elem.type ] ||
-					jQuery.valHooks[ elem.nodeName.toLowerCase() ];
-
-				if ( hooks &&
-					"get" in hooks &&
-					( ret = hooks.get( elem, "value" ) ) !== undefined
-				) {
-					return ret;
-				}
-
-				ret = elem.value;
-
-				// Handle most common string cases
-				if ( typeof ret === "string" ) {
-					return ret.replace( rreturn, "" );
-				}
-
-				// Handle cases where value is null/undef or number
-				return ret == null ? "" : ret;
-			}
-
-			return;
-		}
-
-		valueIsFunction = isFunction( value );
-
-		return this.each( function( i ) {
-			var val;
-
-			if ( this.nodeType !== 1 ) {
-				return;
-			}
-
-			if ( valueIsFunction ) {
-				val = value.call( this, i, jQuery( this ).val() );
-			} else {
-				val = value;
-			}
-
-			// Treat null/undefined as ""; convert numbers to string
-			if ( val == null ) {
-				val = "";
-
-			} else if ( typeof val === "number" ) {
-				val += "";
-
-			} else if ( Array.isArray( val ) ) {
-				val = jQuery.map( val, function( value ) {
-					return value == null ? "" : value + "";
-				} );
-			}
-
-			hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
-
-			// If set returns undefined, fall back to normal setting
-			if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
-				this.value = val;
-			}
-		} );
-	}
-} );
-
-jQuery.extend( {
-	valHooks: {
-		option: {
-			get: function( elem ) {
-
-				var val = jQuery.find.attr( elem, "value" );
-				return val != null ?
-					val :
-
-					// Support: IE <=10 - 11 only
-					// option.text throws exceptions (#14686, #14858)
-					// Strip and collapse whitespace
-					// https://html.spec.whatwg.org/#strip-and-collapse-whitespace
-					stripAndCollapse( jQuery.text( elem ) );
-			}
-		},
-		select: {
-			get: function( elem ) {
-				var value, option, i,
-					options = elem.options,
-					index = elem.selectedIndex,
-					one = elem.type === "select-one",
-					values = one ? null : [],
-					max = one ? index + 1 : options.length;
-
-				if ( index < 0 ) {
-					i = max;
-
-				} else {
-					i = one ? index : 0;
-				}
-
-				// Loop through all the selected options
-				for ( ; i < max; i++ ) {
-					option = options[ i ];
-
-					// Support: IE <=9 only
-					// IE8-9 doesn't update selected after form reset (#2551)
-					if ( ( option.selected || i === index ) &&
-
-							// Don't return options that are disabled or in a disabled optgroup
-							!option.disabled &&
-							( !option.parentNode.disabled ||
-								!nodeName( option.parentNode, "optgroup" ) ) ) {
-
-						// Get the specific value for the option
-						value = jQuery( option ).val();
-
-						// We don't need an array for one selects
-						if ( one ) {
-							return value;
-						}
-
-						// Multi-Selects return an array
-						values.push( value );
-					}
-				}
-
-				return values;
-			},
-
-			set: function( elem, value ) {
-				var optionSet, option,
-					options = elem.options,
-					values = jQuery.makeArray( value ),
-					i = options.length;
-
-				while ( i-- ) {
-					option = options[ i ];
-
-					/* eslint-disable no-cond-assign */
-
-					if ( option.selected =
-						jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
-					) {
-						optionSet = true;
-					}
-
-					/* eslint-enable no-cond-assign */
-				}
-
-				// Force browsers to behave consistently when non-matching value is set
-				if ( !optionSet ) {
-					elem.selectedIndex = -1;
-				}
-				return values;
-			}
-		}
-	}
-} );
-
-// Radios and checkboxes getter/setter
-jQuery.each( [ "radio", "checkbox" ], function() {
-	jQuery.valHooks[ this ] = {
-		set: function( elem, value ) {
-			if ( Array.isArray( value ) ) {
-				return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
-			}
-		}
-	};
-	if ( !support.checkOn ) {
-		jQuery.valHooks[ this ].get = function( elem ) {
-			return elem.getAttribute( "value" ) === null ? "on" : elem.value;
-		};
-	}
-} );
-
-
-
-
-// Return jQuery for attributes-only inclusion
-
-
-support.focusin = "onfocusin" in window;
-
-
-var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
-	stopPropagationCallback = function( e ) {
-		e.stopPropagation();
-	};
-
-jQuery.extend( jQuery.event, {
-
-	trigger: function( event, data, elem, onlyHandlers ) {
-
-		var i, cur, tmp, bubbleType, ontype, handle, special, lastElement,
-			eventPath = [ elem || document ],
-			type = hasOwn.call( event, "type" ) ? event.type : event,
-			namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];
-
-		cur = lastElement = tmp = elem = elem || document;
-
-		// Don't do events on text and comment nodes
-		if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
-			return;
-		}
-
-		// focus/blur morphs to focusin/out; ensure we're not firing them right now
-		if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
-			return;
-		}
-
-		if ( type.indexOf( "." ) > -1 ) {
-
-			// Namespaced trigger; create a regexp to match event type in handle()
-			namespaces = type.split( "." );
-			type = namespaces.shift();
-			namespaces.sort();
-		}
-		ontype = type.indexOf( ":" ) < 0 && "on" + type;
-
-		// Caller can pass in a jQuery.Event object, Object, or just an event type string
-		event = event[ jQuery.expando ] ?
-			event :
-			new jQuery.Event( type, typeof event === "object" && event );
-
-		// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
-		event.isTrigger = onlyHandlers ? 2 : 3;
-		event.namespace = namespaces.join( "." );
-		event.rnamespace = event.namespace ?
-			new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
-			null;
-
-		// Clean up the event in case it is being reused
-		event.result = undefined;
-		if ( !event.target ) {
-			event.target = elem;
-		}
-
-		// Clone any incoming data and prepend the event, creating the handler arg list
-		data = data == null ?
-			[ event ] :
-			jQuery.makeArray( data, [ event ] );
-
-		// Allow special events to draw outside the lines
-		special = jQuery.event.special[ type ] || {};
-		if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
-			return;
-		}
-
-		// Determine event propagation path in advance, per W3C events spec (#9951)
-		// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
-		if ( !onlyHandlers && !special.noBubble && !isWindow( elem ) ) {
-
-			bubbleType = special.delegateType || type;
-			if ( !rfocusMorph.test( bubbleType + type ) ) {
-				cur = cur.parentNode;
-			}
-			for ( ; cur; cur = cur.parentNode ) {
-				eventPath.push( cur );
-				tmp = cur;
-			}
-
-			// Only add window if we got to document (e.g., not plain obj or detached DOM)
-			if ( tmp === ( elem.ownerDocument || document ) ) {
-				eventPath.push( tmp.defaultView || tmp.parentWindow || window );
-			}
-		}
-
-		// Fire handlers on the event path
-		i = 0;
-		while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
-			lastElement = cur;
-			event.type = i > 1 ?
-				bubbleType :
-				special.bindType || type;
-
-			// jQuery handler
-			handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] &&
-				dataPriv.get( cur, "handle" );
-			if ( handle ) {
-				handle.apply( cur, data );
-			}
-
-			// Native handler
-			handle = ontype && cur[ ontype ];
-			if ( handle && handle.apply && acceptData( cur ) ) {
-				event.result = handle.apply( cur, data );
-				if ( event.result === false ) {
-					event.preventDefault();
-				}
-			}
-		}
-		event.type = type;
-
-		// If nobody prevented the default action, do it now
-		if ( !onlyHandlers && !event.isDefaultPrevented() ) {
-
-			if ( ( !special._default ||
-				special._default.apply( eventPath.pop(), data ) === false ) &&
-				acceptData( elem ) ) {
-
-				// Call a native DOM method on the target with the same name as the event.
-				// Don't do default actions on window, that's where global variables be (#6170)
-				if ( ontype && isFunction( elem[ type ] ) && !isWindow( elem ) ) {
-
-					// Don't re-trigger an onFOO event when we call its FOO() method
-					tmp = elem[ ontype ];
-
-					if ( tmp ) {
-						elem[ ontype ] = null;
-					}
-
-					// Prevent re-triggering of the same event, since we already bubbled it above
-					jQuery.event.triggered = type;
-
-					if ( event.isPropagationStopped() ) {
-						lastElement.addEventListener( type, stopPropagationCallback );
-					}
-
-					elem[ type ]();
-
-					if ( event.isPropagationStopped() ) {
-						lastElement.removeEventListener( type, stopPropagationCallback );
-					}
-
-					jQuery.event.triggered = undefined;
-
-					if ( tmp ) {
-						elem[ ontype ] = tmp;
-					}
-				}
-			}
-		}
-
-		return event.result;
-	},
-
-	// Piggyback on a donor event to simulate a different one
-	// Used only for `focus(in | out)` events
-	simulate: function( type, elem, event ) {
-		var e = jQuery.extend(
-			new jQuery.Event(),
-			event,
-			{
-				type: type,
-				isSimulated: true
-			}
-		);
-
-		jQuery.event.trigger( e, null, elem );
-	}
-
-} );
-
-jQuery.fn.extend( {
-
-	trigger: function( type, data ) {
-		return this.each( function() {
-			jQuery.event.trigger( type, data, this );
-		} );
-	},
-	triggerHandler: function( type, data ) {
-		var elem = this[ 0 ];
-		if ( elem ) {
-			return jQuery.event.trigger( type, data, elem, true );
-		}
-	}
-} );
-
-
-// Support: Firefox <=44
-// Firefox doesn't have focus(in | out) events
-// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
-//
-// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
-// focus(in | out) events fire after focus & blur events,
-// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
-// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
-if ( !support.focusin ) {
-	jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {
-
-		// Attach a single capturing handler on the document while someone wants focusin/focusout
-		var handler = function( event ) {
-			jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
-		};
-
-		jQuery.event.special[ fix ] = {
-			setup: function() {
-				var doc = this.ownerDocument || this,
-					attaches = dataPriv.access( doc, fix );
-
-				if ( !attaches ) {
-					doc.addEventListener( orig, handler, true );
-				}
-				dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
-			},
-			teardown: function() {
-				var doc = this.ownerDocument || this,
-					attaches = dataPriv.access( doc, fix ) - 1;
-
-				if ( !attaches ) {
-					doc.removeEventListener( orig, handler, true );
-					dataPriv.remove( doc, fix );
-
-				} else {
-					dataPriv.access( doc, fix, attaches );
-				}
-			}
-		};
-	} );
-}
-var location = window.location;
-
-var nonce = Date.now();
-
-var rquery = ( /\?/ );
-
-
-
-// Cross-browser xml parsing
-jQuery.parseXML = function( data ) {
-	var xml;
-	if ( !data || typeof data !== "string" ) {
-		return null;
-	}
-
-	// Support: IE 9 - 11 only
-	// IE throws on parseFromString with invalid input.
-	try {
-		xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
-	} catch ( e ) {
-		xml = undefined;
-	}
-
-	if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
-		jQuery.error( "Invalid XML: " + data );
-	}
-	return xml;
-};
-
-
-var
-	rbracket = /\[\]$/,
-	rCRLF = /\r?\n/g,
-	rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
-	rsubmittable = /^(?:input|select|textarea|keygen)/i;
-
-function buildParams( prefix, obj, traditional, add ) {
-	var name;
-
-	if ( Array.isArray( obj ) ) {
-
-		// Serialize array item.
-		jQuery.each( obj, function( i, v ) {
-			if ( traditional || rbracket.test( prefix ) ) {
-
-				// Treat each array item as a scalar.
-				add( prefix, v );
-
-			} else {
-
-				// Item is non-scalar (array or object), encode its numeric index.
-				buildParams(
-					prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
-					v,
-					traditional,
-					add
-				);
-			}
-		} );
-
-	} else if ( !traditional && toType( obj ) === "object" ) {
-
-		// Serialize object item.
-		for ( name in obj ) {
-			buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
-		}
-
-	} else {
-
-		// Serialize scalar item.
-		add( prefix, obj );
-	}
-}
-
-// Serialize an array of form elements or a set of
-// key/values into a query string
-jQuery.param = function( a, traditional ) {
-	var prefix,
-		s = [],
-		add = function( key, valueOrFunction ) {
-
-			// If value is a function, invoke it and use its return value
-			var value = isFunction( valueOrFunction ) ?
-				valueOrFunction() :
-				valueOrFunction;
-
-			s[ s.length ] = encodeURIComponent( key ) + "=" +
-				encodeURIComponent( value == null ? "" : value );
-		};
-
-	if ( a == null ) {
-		return "";
-	}
-
-	// If an array was passed in, assume that it is an array of form elements.
-	if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
-
-		// Serialize the form elements
-		jQuery.each( a, function() {
-			add( this.name, this.value );
-		} );
-
-	} else {
-
-		// If traditional, encode the "old" way (the way 1.3.2 or older
-		// did it), otherwise encode params recursively.
-		for ( prefix in a ) {
-			buildParams( prefix, a[ prefix ], traditional, add );
-		}
-	}
-
-	// Return the resulting serialization
-	return s.join( "&" );
-};
-
-jQuery.fn.extend( {
-	serialize: function() {
-		return jQuery.param( this.serializeArray() );
-	},
-	serializeArray: function() {
-		return this.map( function() {
-
-			// Can add propHook for "elements" to filter or add form elements
-			var elements = jQuery.prop( this, "elements" );
-			return elements ? jQuery.makeArray( elements ) : this;
-		} )
-		.filter( function() {
-			var type = this.type;
-
-			// Use .is( ":disabled" ) so that fieldset[disabled] works
-			return this.name && !jQuery( this ).is( ":disabled" ) &&
-				rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
-				( this.checked || !rcheckableType.test( type ) );
-		} )
-		.map( function( i, elem ) {
-			var val = jQuery( this ).val();
-
-			if ( val == null ) {
-				return null;
-			}
-
-			if ( Array.isArray( val ) ) {
-				return jQuery.map( val, function( val ) {
-					return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
-				} );
-			}
-
-			return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
-		} ).get();
-	}
-} );
-
-
-var
-	r20 = /%20/g,
-	rhash = /#.*$/,
-	rantiCache = /([?&])_=[^&]*/,
-	rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
-
-	// #7653, #8125, #8152: local protocol detection
-	rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
-	rnoContent = /^(?:GET|HEAD)$/,
-	rprotocol = /^\/\//,
-
-	/* Prefilters
-	 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
-	 * 2) These are called:
-	 *    - BEFORE asking for a transport
-	 *    - AFTER param serialization (s.data is a string if s.processData is true)
-	 * 3) key is the dataType
-	 * 4) the catchall symbol "*" can be used
-	 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
-	 */
-	prefilters = {},
-
-	/* Transports bindings
-	 * 1) key is the dataType
-	 * 2) the catchall symbol "*" can be used
-	 * 3) selection will start with transport dataType and THEN go to "*" if needed
-	 */
-	transports = {},
-
-	// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
-	allTypes = "*/".concat( "*" ),
-
-	// Anchor tag for parsing the document origin
-	originAnchor = document.createElement( "a" );
-	originAnchor.href = location.href;
-
-// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
-function addToPrefiltersOrTransports( structure ) {
-
-	// dataTypeExpression is optional and defaults to "*"
-	return function( dataTypeExpression, func ) {
-
-		if ( typeof dataTypeExpression !== "string" ) {
-			func = dataTypeExpression;
-			dataTypeExpression = "*";
-		}
-
-		var dataType,
-			i = 0,
-			dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];
-
-		if ( isFunction( func ) ) {
-
-			// For each dataType in the dataTypeExpression
-			while ( ( dataType = dataTypes[ i++ ] ) ) {
-
-				// Prepend if requested
-				if ( dataType[ 0 ] === "+" ) {
-					dataType = dataType.slice( 1 ) || "*";
-					( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );
-
-				// Otherwise append
-				} else {
-					( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
-				}
-			}
-		}
-	};
-}
-
-// Base inspection function for prefilters and transports
-function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
-
-	var inspected = {},
-		seekingTransport = ( structure === transports );
-
-	function inspect( dataType ) {
-		var selected;
-		inspected[ dataType ] = true;
-		jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
-			var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
-			if ( typeof dataTypeOrTransport === "string" &&
-				!seekingTransport && !inspected[ dataTypeOrTransport ] ) {
-
-				options.dataTypes.unshift( dataTypeOrTransport );
-				inspect( dataTypeOrTransport );
-				return false;
-			} else if ( seekingTransport ) {
-				return !( selected = dataTypeOrTransport );
-			}
-		} );
-		return selected;
-	}
-
-	return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
-}
-
-// A special extend for ajax options
-// that takes "flat" options (not to be deep extended)
-// Fixes #9887
-function ajaxExtend( target, src ) {
-	var key, deep,
-		flatOptions = jQuery.ajaxSettings.flatOptions || {};
-
-	for ( key in src ) {
-		if ( src[ key ] !== undefined ) {
-			( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
-		}
-	}
-	if ( deep ) {
-		jQuery.extend( true, target, deep );
-	}
-
-	return target;
-}
-
-/* Handles responses to an ajax request:
- * - finds the right dataType (mediates between content-type and expected dataType)
- * - returns the corresponding response
- */
-function ajaxHandleResponses( s, jqXHR, responses ) {
-
-	var ct, type, finalDataType, firstDataType,
-		contents = s.contents,
-		dataTypes = s.dataTypes;
-
-	// Remove auto dataType and get content-type in the process
-	while ( dataTypes[ 0 ] === "*" ) {
-		dataTypes.shift();
-		if ( ct === undefined ) {
-			ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
-		}
-	}
-
-	// Check if we're dealing with a known content-type
-	if ( ct ) {
-		for ( type in contents ) {
-			if ( contents[ type ] && contents[ type ].test( ct ) ) {
-				dataTypes.unshift( type );
-				break;
-			}
-		}
-	}
-
-	// Check to see if we have a response for the expected dataType
-	if ( dataTypes[ 0 ] in responses ) {
-		finalDataType = dataTypes[ 0 ];
-	} else {
-
-		// Try convertible dataTypes
-		for ( type in responses ) {
-			if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
-				finalDataType = type;
-				break;
-			}
-			if ( !firstDataType ) {
-				firstDataType = type;
-			}
-		}
-
-		// Or just use first one
-		finalDataType = finalDataType || firstDataType;
-	}
-
-	// If we found a dataType
-	// We add the dataType to the list if needed
-	// and return the corresponding response
-	if ( finalDataType ) {
-		if ( finalDataType !== dataTypes[ 0 ] ) {
-			dataTypes.unshift( finalDataType );
-		}
-		return responses[ finalDataType ];
-	}
-}
-
-/* Chain conversions given the request and the original response
- * Also sets the responseXXX fields on the jqXHR instance
- */
-function ajaxConvert( s, response, jqXHR, isSuccess ) {
-	var conv2, current, conv, tmp, prev,
-		converters = {},
-
-		// Work with a copy of dataTypes in case we need to modify it for conversion
-		dataTypes = s.dataTypes.slice();
-
-	// Create converters map with lowercased keys
-	if ( dataTypes[ 1 ] ) {
-		for ( conv in s.converters ) {
-			converters[ conv.toLowerCase() ] = s.converters[ conv ];
-		}
-	}
-
-	current = dataTypes.shift();
-
-	// Convert to each sequential dataType
-	while ( current ) {
-
-		if ( s.responseFields[ current ] ) {
-			jqXHR[ s.responseFields[ current ] ] = response;
-		}
-
-		// Apply the dataFilter if provided
-		if ( !prev && isSuccess && s.dataFilter ) {
-			response = s.dataFilter( response, s.dataType );
-		}
-
-		prev = current;
-		current = dataTypes.shift();
-
-		if ( current ) {
-
-			// There's only work to do if current dataType is non-auto
-			if ( current === "*" ) {
-
-				current = prev;
-
-			// Convert response if prev dataType is non-auto and differs from current
-			} else if ( prev !== "*" && prev !== current ) {
-
-				// Seek a direct converter
-				conv = converters[ prev + " " + current ] || converters[ "* " + current ];
-
-				// If none found, seek a pair
-				if ( !conv ) {
-					for ( conv2 in converters ) {
-
-						// If conv2 outputs current
-						tmp = conv2.split( " " );
-						if ( tmp[ 1 ] === current ) {
-
-							// If prev can be converted to accepted input
-							conv = converters[ prev + " " + tmp[ 0 ] ] ||
-								converters[ "* " + tmp[ 0 ] ];
-							if ( conv ) {
-
-								// Condense equivalence converters
-								if ( conv === true ) {
-									conv = converters[ conv2 ];
-
-								// Otherwise, insert the intermediate dataType
-								} else if ( converters[ conv2 ] !== true ) {
-									current = tmp[ 0 ];
-									dataTypes.unshift( tmp[ 1 ] );
-								}
-								break;
-							}
-						}
-					}
-				}
-
-				// Apply converter (if not an equivalence)
-				if ( conv !== true ) {
-
-					// Unless errors are allowed to bubble, catch and return them
-					if ( conv && s.throws ) {
-						response = conv( response );
-					} else {
-						try {
-							response = conv( response );
-						} catch ( e ) {
-							return {
-								state: "parsererror",
-								error: conv ? e : "No conversion from " + prev + " to " + current
-							};
-						}
-					}
-				}
-			}
-		}
-	}
-
-	return { state: "success", data: response };
-}
-
-jQuery.extend( {
-
-	// Counter for holding the number of active queries
-	active: 0,
-
-	// Last-Modified header cache for next request
-	lastModified: {},
-	etag: {},
-
-	ajaxSettings: {
-		url: location.href,
-		type: "GET",
-		isLocal: rlocalProtocol.test( location.protocol ),
-		global: true,
-		processData: true,
-		async: true,
-		contentType: "application/x-www-form-urlencoded; charset=UTF-8",
-
-		/*
-		timeout: 0,
-		data: null,
-		dataType: null,
-		username: null,
-		password: null,
-		cache: null,
-		throws: false,
-		traditional: false,
-		headers: {},
-		*/
-
-		accepts: {
-			"*": allTypes,
-			text: "text/plain",
-			html: "text/html",
-			xml: "application/xml, text/xml",
-			json: "application/json, text/javascript"
-		},
-
-		contents: {
-			xml: /\bxml\b/,
-			html: /\bhtml/,
-			json: /\bjson\b/
-		},
-
-		responseFields: {
-			xml: "responseXML",
-			text: "responseText",
-			json: "responseJSON"
-		},
-
-		// Data converters
-		// Keys separate source (or catchall "*") and destination types with a single space
-		converters: {
-
-			// Convert anything to text
-			"* text": String,
-
-			// Text to html (true = no transformation)
-			"text html": true,
-
-			// Evaluate text as a json expression
-			"text json": JSON.parse,
-
-			// Parse text as xml
-			"text xml": jQuery.parseXML
-		},
-
-		// For options that shouldn't be deep extended:
-		// you can add your own custom options here if
-		// and when you create one that shouldn't be
-		// deep extended (see ajaxExtend)
-		flatOptions: {
-			url: true,
-			context: true
-		}
-	},
-
-	// Creates a full fledged settings object into target
-	// with both ajaxSettings and settings fields.
-	// If target is omitted, writes into ajaxSettings.
-	ajaxSetup: function( target, settings ) {
-		return settings ?
-
-			// Building a settings object
-			ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
-
-			// Extending ajaxSettings
-			ajaxExtend( jQuery.ajaxSettings, target );
-	},
-
-	ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
-	ajaxTransport: addToPrefiltersOrTransports( transports ),
-
-	// Main method
-	ajax: function( url, options ) {
-
-		// If url is an object, simulate pre-1.5 signature
-		if ( typeof url === "object" ) {
-			options = url;
-			url = undefined;
-		}
-
-		// Force options to be an object
-		options = options || {};
-
-		var transport,
-
-			// URL without anti-cache param
-			cacheURL,
-
-			// Response headers
-			responseHeadersString,
-			responseHeaders,
-
-			// timeout handle
-			timeoutTimer,
-
-			// Url cleanup var
-			urlAnchor,
-
-			// Request state (becomes false upon send and true upon completion)
-			completed,
-
-			// To know if global events are to be dispatched
-			fireGlobals,
-
-			// Loop variable
-			i,
-
-			// uncached part of the url
-			uncached,
-
-			// Create the final options object
-			s = jQuery.ajaxSetup( {}, options ),
-
-			// Callbacks context
-			callbackContext = s.context || s,
-
-			// Context for global events is callbackContext if it is a DOM node or jQuery collection
-			globalEventContext = s.context &&
-				( callbackContext.nodeType || callbackContext.jquery ) ?
-					jQuery( callbackContext ) :
-					jQuery.event,
-
-			// Deferreds
-			deferred = jQuery.Deferred(),
-			completeDeferred = jQuery.Callbacks( "once memory" ),
-
-			// Status-dependent callbacks
-			statusCode = s.statusCode || {},
-
-			// Headers (they are sent all at once)
-			requestHeaders = {},
-			requestHeadersNames = {},
-
-			// Default abort message
-			strAbort = "canceled",
-
-			// Fake xhr
-			jqXHR = {
-				readyState: 0,
-
-				// Builds headers hashtable if needed
-				getResponseHeader: function( key ) {
-					var match;
-					if ( completed ) {
-						if ( !responseHeaders ) {
-							responseHeaders = {};
-							while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
-								responseHeaders[ match[ 1 ].toLowerCase() + " " ] =
-									( responseHeaders[ match[ 1 ].toLowerCase() + " " ] || [] )
-										.concat( match[ 2 ] );
-							}
-						}
-						match = responseHeaders[ key.toLowerCase() + " " ];
-					}
-					return match == null ? null : match.join( ", " );
-				},
-
-				// Raw string
-				getAllResponseHeaders: function() {
-					return completed ? responseHeadersString : null;
-				},
-
-				// Caches the header
-				setRequestHeader: function( name, value ) {
-					if ( completed == null ) {
-						name = requestHeadersNames[ name.toLowerCase() ] =
-							requestHeadersNames[ name.toLowerCase() ] || name;
-						requestHeaders[ name ] = value;
-					}
-					return this;
-				},
-
-				// Overrides response content-type header
-				overrideMimeType: function( type ) {
-					if ( completed == null ) {
-						s.mimeType = type;
-					}
-					return this;
-				},
-
-				// Status-dependent callbacks
-				statusCode: function( map ) {
-					var code;
-					if ( map ) {
-						if ( completed ) {
-
-							// Execute the appropriate callbacks
-							jqXHR.always( map[ jqXHR.status ] );
-						} else {
-
-							// Lazy-add the new callbacks in a way that preserves old ones
-							for ( code in map ) {
-								statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
-							}
-						}
-					}
-					return this;
-				},
-
-				// Cancel the request
-				abort: function( statusText ) {
-					var finalText = statusText || strAbort;
-					if ( transport ) {
-						transport.abort( finalText );
-					}
-					done( 0, finalText );
-					return this;
-				}
-			};
-
-		// Attach deferreds
-		deferred.promise( jqXHR );
-
-		// Add protocol if not provided (prefilters might expect it)
-		// Handle falsy url in the settings object (#10093: consistency with old signature)
-		// We also use the url parameter if available
-		s.url = ( ( url || s.url || location.href ) + "" )
-			.replace( rprotocol, location.protocol + "//" );
-
-		// Alias method option to type as per ticket #12004
-		s.type = options.method || options.type || s.method || s.type;
-
-		// Extract dataTypes list
-		s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];
-
-		// A cross-domain request is in order when the origin doesn't match the current origin.
-		if ( s.crossDomain == null ) {
-			urlAnchor = document.createElement( "a" );
-
-			// Support: IE <=8 - 11, Edge 12 - 15
-			// IE throws exception on accessing the href property if url is malformed,
-			// e.g. http://example.com:80x/
-			try {
-				urlAnchor.href = s.url;
-
-				// Support: IE <=8 - 11 only
-				// Anchor's host property isn't correctly set when s.url is relative
-				urlAnchor.href = urlAnchor.href;
-				s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
-					urlAnchor.protocol + "//" + urlAnchor.host;
-			} catch ( e ) {
-
-				// If there is an error parsing the URL, assume it is crossDomain,
-				// it can be rejected by the transport if it is invalid
-				s.crossDomain = true;
-			}
-		}
-
-		// Convert data if not already a string
-		if ( s.data && s.processData && typeof s.data !== "string" ) {
-			s.data = jQuery.param( s.data, s.traditional );
-		}
-
-		// Apply prefilters
-		inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
-
-		// If request was aborted inside a prefilter, stop there
-		if ( completed ) {
-			return jqXHR;
-		}
-
-		// We can fire global events as of now if asked to
-		// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
-		fireGlobals = jQuery.event && s.global;
-
-		// Watch for a new set of requests
-		if ( fireGlobals && jQuery.active++ === 0 ) {
-			jQuery.event.trigger( "ajaxStart" );
-		}
-
-		// Uppercase the type
-		s.type = s.type.toUpperCase();
-
-		// Determine if request has content
-		s.hasContent = !rnoContent.test( s.type );
-
-		// Save the URL in case we're toying with the If-Modified-Since
-		// and/or If-None-Match header later on
-		// Remove hash to simplify url manipulation
-		cacheURL = s.url.replace( rhash, "" );
-
-		// More options handling for requests with no content
-		if ( !s.hasContent ) {
-
-			// Remember the hash so we can put it back
-			uncached = s.url.slice( cacheURL.length );
-
-			// If data is available and should be processed, append data to url
-			if ( s.data && ( s.processData || typeof s.data === "string" ) ) {
-				cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;
-
-				// #9682: remove data so that it's not used in an eventual retry
-				delete s.data;
-			}
-
-			// Add or update anti-cache param if needed
-			if ( s.cache === false ) {
-				cacheURL = cacheURL.replace( rantiCache, "$1" );
-				uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached;
-			}
-
-			// Put hash and anti-cache on the URL that will be requested (gh-1732)
-			s.url = cacheURL + uncached;
-
-		// Change '%20' to '+' if this is encoded form body content (gh-2658)
-		} else if ( s.data && s.processData &&
-			( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
-			s.data = s.data.replace( r20, "+" );
-		}
-
-		// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-		if ( s.ifModified ) {
-			if ( jQuery.lastModified[ cacheURL ] ) {
-				jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
-			}
-			if ( jQuery.etag[ cacheURL ] ) {
-				jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
-			}
-		}
-
-		// Set the correct header, if data is being sent
-		if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
-			jqXHR.setRequestHeader( "Content-Type", s.contentType );
-		}
-
-		// Set the Accepts header for the server, depending on the dataType
-		jqXHR.setRequestHeader(
-			"Accept",
-			s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
-				s.accepts[ s.dataTypes[ 0 ] ] +
-					( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
-				s.accepts[ "*" ]
-		);
-
-		// Check for headers option
-		for ( i in s.headers ) {
-			jqXHR.setRequestHeader( i, s.headers[ i ] );
-		}
-
-		// Allow custom headers/mimetypes and early abort
-		if ( s.beforeSend &&
-			( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {
-
-			// Abort if not done already and return
-			return jqXHR.abort();
-		}
-
-		// Aborting is no longer a cancellation
-		strAbort = "abort";
-
-		// Install callbacks on deferreds
-		completeDeferred.add( s.complete );
-		jqXHR.done( s.success );
-		jqXHR.fail( s.error );
-
-		// Get transport
-		transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
-
-		// If no transport, we auto-abort
-		if ( !transport ) {
-			done( -1, "No Transport" );
-		} else {
-			jqXHR.readyState = 1;
-
-			// Send global event
-			if ( fireGlobals ) {
-				globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
-			}
-
-			// If request was aborted inside ajaxSend, stop there
-			if ( completed ) {
-				return jqXHR;
-			}
-
-			// Timeout
-			if ( s.async && s.timeout > 0 ) {
-				timeoutTimer = window.setTimeout( function() {
-					jqXHR.abort( "timeout" );
-				}, s.timeout );
-			}
-
-			try {
-				completed = false;
-				transport.send( requestHeaders, done );
-			} catch ( e ) {
-
-				// Rethrow post-completion exceptions
-				if ( completed ) {
-					throw e;
-				}
-
-				// Propagate others as results
-				done( -1, e );
-			}
-		}
-
-		// Callback for when everything is done
-		function done( status, nativeStatusText, responses, headers ) {
-			var isSuccess, success, error, response, modified,
-				statusText = nativeStatusText;
-
-			// Ignore repeat invocations
-			if ( completed ) {
-				return;
-			}
-
-			completed = true;
-
-			// Clear timeout if it exists
-			if ( timeoutTimer ) {
-				window.clearTimeout( timeoutTimer );
-			}
-
-			// Dereference transport for early garbage collection
-			// (no matter how long the jqXHR object will be used)
-			transport = undefined;
-
-			// Cache response headers
-			responseHeadersString = headers || "";
-
-			// Set readyState
-			jqXHR.readyState = status > 0 ? 4 : 0;
-
-			// Determine if successful
-			isSuccess = status >= 200 && status < 300 || status === 304;
-
-			// Get response data
-			if ( responses ) {
-				response = ajaxHandleResponses( s, jqXHR, responses );
-			}
-
-			// Convert no matter what (that way responseXXX fields are always set)
-			response = ajaxConvert( s, response, jqXHR, isSuccess );
-
-			// If successful, handle type chaining
-			if ( isSuccess ) {
-
-				// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-				if ( s.ifModified ) {
-					modified = jqXHR.getResponseHeader( "Last-Modified" );
-					if ( modified ) {
-						jQuery.lastModified[ cacheURL ] = modified;
-					}
-					modified = jqXHR.getResponseHeader( "etag" );
-					if ( modified ) {
-						jQuery.etag[ cacheURL ] = modified;
-					}
-				}
-
-				// if no content
-				if ( status === 204 || s.type === "HEAD" ) {
-					statusText = "nocontent";
-
-				// if not modified
-				} else if ( status === 304 ) {
-					statusText = "notmodified";
-
-				// If we have data, let's convert it
-				} else {
-					statusText = response.state;
-					success = response.data;
-					error = response.error;
-					isSuccess = !error;
-				}
-			} else {
-
-				// Extract error from statusText and normalize for non-aborts
-				error = statusText;
-				if ( status || !statusText ) {
-					statusText = "error";
-					if ( status < 0 ) {
-						status = 0;
-					}
-				}
-			}
-
-			// Set data for the fake xhr object
-			jqXHR.status = status;
-			jqXHR.statusText = ( nativeStatusText || statusText ) + "";
-
-			// Success/Error
-			if ( isSuccess ) {
-				deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
-			} else {
-				deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
-			}
-
-			// Status-dependent callbacks
-			jqXHR.statusCode( statusCode );
-			statusCode = undefined;
-
-			if ( fireGlobals ) {
-				globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
-					[ jqXHR, s, isSuccess ? success : error ] );
-			}
-
-			// Complete
-			completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
-
-			if ( fireGlobals ) {
-				globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
-
-				// Handle the global AJAX counter
-				if ( !( --jQuery.active ) ) {
-					jQuery.event.trigger( "ajaxStop" );
-				}
-			}
-		}
-
-		return jqXHR;
-	},
-
-	getJSON: function( url, data, callback ) {
-		return jQuery.get( url, data, callback, "json" );
-	},
-
-	getScript: function( url, callback ) {
-		return jQuery.get( url, undefined, callback, "script" );
-	}
-} );
-
-jQuery.each( [ "get", "post" ], function( i, method ) {
-	jQuery[ method ] = function( url, data, callback, type ) {
-
-		// Shift arguments if data argument was omitted
-		if ( isFunction( data ) ) {
-			type = type || callback;
-			callback = data;
-			data = undefined;
-		}
-
-		// The url can be an options object (which then must have .url)
-		return jQuery.ajax( jQuery.extend( {
-			url: url,
-			type: method,
-			dataType: type,
-			data: data,
-			success: callback
-		}, jQuery.isPlainObject( url ) && url ) );
-	};
-} );
-
-
-jQuery._evalUrl = function( url, options ) {
-	return jQuery.ajax( {
-		url: url,
-
-		// Make this explicit, since user can override this through ajaxSetup (#11264)
-		type: "GET",
-		dataType: "script",
-		cache: true,
-		async: false,
-		global: false,
-
-		// Only evaluate the response if it is successful (gh-4126)
-		// dataFilter is not invoked for failure responses, so using it instead
-		// of the default converter is kludgy but it works.
-		converters: {
-			"text script": function() {}
-		},
-		dataFilter: function( response ) {
-			jQuery.globalEval( response, options );
-		}
-	} );
-};
-
-
-jQuery.fn.extend( {
-	wrapAll: function( html ) {
-		var wrap;
-
-		if ( this[ 0 ] ) {
-			if ( isFunction( html ) ) {
-				html = html.call( this[ 0 ] );
-			}
-
-			// The elements to wrap the target around
-			wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
-
-			if ( this[ 0 ].parentNode ) {
-				wrap.insertBefore( this[ 0 ] );
-			}
-
-			wrap.map( function() {
-				var elem = this;
-
-				while ( elem.firstElementChild ) {
-					elem = elem.firstElementChild;
-				}
-
-				return elem;
-			} ).append( this );
-		}
-
-		return this;
-	},
-
-	wrapInner: function( html ) {
-		if ( isFunction( html ) ) {
-			return this.each( function( i ) {
-				jQuery( this ).wrapInner( html.call( this, i ) );
-			} );
-		}
-
-		return this.each( function() {
-			var self = jQuery( this ),
-				contents = self.contents();
-
-			if ( contents.length ) {
-				contents.wrapAll( html );
-
-			} else {
-				self.append( html );
-			}
-		} );
-	},
-
-	wrap: function( html ) {
-		var htmlIsFunction = isFunction( html );
-
-		return this.each( function( i ) {
-			jQuery( this ).wrapAll( htmlIsFunction ? html.call( this, i ) : html );
-		} );
-	},
-
-	unwrap: function( selector ) {
-		this.parent( selector ).not( "body" ).each( function() {
-			jQuery( this ).replaceWith( this.childNodes );
-		} );
-		return this;
-	}
-} );
-
-
-jQuery.expr.pseudos.hidden = function( elem ) {
-	return !jQuery.expr.pseudos.visible( elem );
-};
-jQuery.expr.pseudos.visible = function( elem ) {
-	return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
-};
-
-
-
-
-jQuery.ajaxSettings.xhr = function() {
-	try {
-		return new window.XMLHttpRequest();
-	} catch ( e ) {}
-};
-
-var xhrSuccessStatus = {
-
-		// File protocol always yields status code 0, assume 200
-		0: 200,
-
-		// Support: IE <=9 only
-		// #1450: sometimes IE returns 1223 when it should be 204
-		1223: 204
-	},
-	xhrSupported = jQuery.ajaxSettings.xhr();
-
-support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
-support.ajax = xhrSupported = !!xhrSupported;
-
-jQuery.ajaxTransport( function( options ) {
-	var callback, errorCallback;
-
-	// Cross domain only allowed if supported through XMLHttpRequest
-	if ( support.cors || xhrSupported && !options.crossDomain ) {
-		return {
-			send: function( headers, complete ) {
-				var i,
-					xhr = options.xhr();
-
-				xhr.open(
-					options.type,
-					options.url,
-					options.async,
-					options.username,
-					options.password
-				);
-
-				// Apply custom fields if provided
-				if ( options.xhrFields ) {
-					for ( i in options.xhrFields ) {
-						xhr[ i ] = options.xhrFields[ i ];
-					}
-				}
-
-				// Override mime type if needed
-				if ( options.mimeType && xhr.overrideMimeType ) {
-					xhr.overrideMimeType( options.mimeType );
-				}
-
-				// X-Requested-With header
-				// For cross-domain requests, seeing as conditions for a preflight are
-				// akin to a jigsaw puzzle, we simply never set it to be sure.
-				// (it can always be set on a per-request basis or even using ajaxSetup)
-				// For same-domain requests, won't change header if already provided.
-				if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
-					headers[ "X-Requested-With" ] = "XMLHttpRequest";
-				}
-
-				// Set headers
-				for ( i in headers ) {
-					xhr.setRequestHeader( i, headers[ i ] );
-				}
-
-				// Callback
-				callback = function( type ) {
-					return function() {
-						if ( callback ) {
-							callback = errorCallback = xhr.onload =
-								xhr.onerror = xhr.onabort = xhr.ontimeout =
-									xhr.onreadystatechange = null;
-
-							if ( type === "abort" ) {
-								xhr.abort();
-							} else if ( type === "error" ) {
-
-								// Support: IE <=9 only
-								// On a manual native abort, IE9 throws
-								// errors on any property access that is not readyState
-								if ( typeof xhr.status !== "number" ) {
-									complete( 0, "error" );
-								} else {
-									complete(
-
-										// File: protocol always yields status 0; see #8605, #14207
-										xhr.status,
-										xhr.statusText
-									);
-								}
-							} else {
-								complete(
-									xhrSuccessStatus[ xhr.status ] || xhr.status,
-									xhr.statusText,
-
-									// Support: IE <=9 only
-									// IE9 has no XHR2 but throws on binary (trac-11426)
-									// For XHR2 non-text, let the caller handle it (gh-2498)
-									( xhr.responseType || "text" ) !== "text"  ||
-									typeof xhr.responseText !== "string" ?
-										{ binary: xhr.response } :
-										{ text: xhr.responseText },
-									xhr.getAllResponseHeaders()
-								);
-							}
-						}
-					};
-				};
-
-				// Listen to events
-				xhr.onload = callback();
-				errorCallback = xhr.onerror = xhr.ontimeout = callback( "error" );
-
-				// Support: IE 9 only
-				// Use onreadystatechange to replace onabort
-				// to handle uncaught aborts
-				if ( xhr.onabort !== undefined ) {
-					xhr.onabort = errorCallback;
-				} else {
-					xhr.onreadystatechange = function() {
-
-						// Check readyState before timeout as it changes
-						if ( xhr.readyState === 4 ) {
-
-							// Allow onerror to be called first,
-							// but that will not handle a native abort
-							// Also, save errorCallback to a variable
-							// as xhr.onerror cannot be accessed
-							window.setTimeout( function() {
-								if ( callback ) {
-									errorCallback();
-								}
-							} );
-						}
-					};
-				}
-
-				// Create the abort callback
-				callback = callback( "abort" );
-
-				try {
-
-					// Do send the request (this may raise an exception)
-					xhr.send( options.hasContent && options.data || null );
-				} catch ( e ) {
-
-					// #14683: Only rethrow if this hasn't been notified as an error yet
-					if ( callback ) {
-						throw e;
-					}
-				}
-			},
-
-			abort: function() {
-				if ( callback ) {
-					callback();
-				}
-			}
-		};
-	}
-} );
-
-
-
-
-// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
-jQuery.ajaxPrefilter( function( s ) {
-	if ( s.crossDomain ) {
-		s.contents.script = false;
-	}
-} );
-
-// Install script dataType
-jQuery.ajaxSetup( {
-	accepts: {
-		script: "text/javascript, application/javascript, " +
-			"application/ecmascript, application/x-ecmascript"
-	},
-	contents: {
-		script: /\b(?:java|ecma)script\b/
-	},
-	converters: {
-		"text script": function( text ) {
-			jQuery.globalEval( text );
-			return text;
-		}
-	}
-} );
-
-// Handle cache's special case and crossDomain
-jQuery.ajaxPrefilter( "script", function( s ) {
-	if ( s.cache === undefined ) {
-		s.cache = false;
-	}
-	if ( s.crossDomain ) {
-		s.type = "GET";
-	}
-} );
-
-// Bind script tag hack transport
-jQuery.ajaxTransport( "script", function( s ) {
-
-	// This transport only deals with cross domain or forced-by-attrs requests
-	if ( s.crossDomain || s.scriptAttrs ) {
-		var script, callback;
-		return {
-			send: function( _, complete ) {
-				script = jQuery( "<script>" )
-					.attr( s.scriptAttrs || {} )
-					.prop( { charset: s.scriptCharset, src: s.url } )
-					.on( "load error", callback = function( evt ) {
-						script.remove();
-						callback = null;
-						if ( evt ) {
-							complete( evt.type === "error" ? 404 : 200, evt.type );
-						}
-					} );
-
-				// Use native DOM manipulation to avoid our domManip AJAX trickery
-				document.head.appendChild( script[ 0 ] );
-			},
-			abort: function() {
-				if ( callback ) {
-					callback();
-				}
-			}
-		};
-	}
-} );
-
-
-
-
-var oldCallbacks = [],
-	rjsonp = /(=)\?(?=&|$)|\?\?/;
-
-// Default jsonp settings
-jQuery.ajaxSetup( {
-	jsonp: "callback",
-	jsonpCallback: function() {
-		var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
-		this[ callback ] = true;
-		return callback;
-	}
-} );
-
-// Detect, normalize options and install callbacks for jsonp requests
-jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
-
-	var callbackName, overwritten, responseContainer,
-		jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
-			"url" :
-			typeof s.data === "string" &&
-				( s.contentType || "" )
-					.indexOf( "application/x-www-form-urlencoded" ) === 0 &&
-				rjsonp.test( s.data ) && "data"
-		);
-
-	// Handle iff the expected data type is "jsonp" or we have a parameter to set
-	if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
-
-		// Get callback name, remembering preexisting value associated with it
-		callbackName = s.jsonpCallback = isFunction( s.jsonpCallback ) ?
-			s.jsonpCallback() :
-			s.jsonpCallback;
-
-		// Insert callback into url or form data
-		if ( jsonProp ) {
-			s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
-		} else if ( s.jsonp !== false ) {
-			s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
-		}
-
-		// Use data converter to retrieve json after script execution
-		s.converters[ "script json" ] = function() {
-			if ( !responseContainer ) {
-				jQuery.error( callbackName + " was not called" );
-			}
-			return responseContainer[ 0 ];
-		};
-
-		// Force json dataType
-		s.dataTypes[ 0 ] = "json";
-
-		// Install callback
-		overwritten = window[ callbackName ];
-		window[ callbackName ] = function() {
-			responseContainer = arguments;
-		};
-
-		// Clean-up function (fires after converters)
-		jqXHR.always( function() {
-
-			// If previous value didn't exist - remove it
-			if ( overwritten === undefined ) {
-				jQuery( window ).removeProp( callbackName );
-
-			// Otherwise restore preexisting value
-			} else {
-				window[ callbackName ] = overwritten;
-			}
-
-			// Save back as free
-			if ( s[ callbackName ] ) {
-
-				// Make sure that re-using the options doesn't screw things around
-				s.jsonpCallback = originalSettings.jsonpCallback;
-
-				// Save the callback name for future use
-				oldCallbacks.push( callbackName );
-			}
-
-			// Call if it was a function and we have a response
-			if ( responseContainer && isFunction( overwritten ) ) {
-				overwritten( responseContainer[ 0 ] );
-			}
-
-			responseContainer = overwritten = undefined;
-		} );
-
-		// Delegate to script
-		return "script";
-	}
-} );
-
-
-
-
-// Support: Safari 8 only
-// In Safari 8 documents created via document.implementation.createHTMLDocument
-// collapse sibling forms: the second one becomes a child of the first one.
-// Because of that, this security measure has to be disabled in Safari 8.
-// https://bugs.webkit.org/show_bug.cgi?id=137337
-support.createHTMLDocument = ( function() {
-	var body = document.implementation.createHTMLDocument( "" ).body;
-	body.innerHTML = "<form></form><form></form>";
-	return body.childNodes.length === 2;
-} )();
-
-
-// Argument "data" should be string of html
-// context (optional): If specified, the fragment will be created in this context,
-// defaults to document
-// keepScripts (optional): If true, will include scripts passed in the html string
-jQuery.parseHTML = function( data, context, keepScripts ) {
-	if ( typeof data !== "string" ) {
-		return [];
-	}
-	if ( typeof context === "boolean" ) {
-		keepScripts = context;
-		context = false;
-	}
-
-	var base, parsed, scripts;
-
-	if ( !context ) {
-
-		// Stop scripts or inline event handlers from being executed immediately
-		// by using document.implementation
-		if ( support.createHTMLDocument ) {
-			context = document.implementation.createHTMLDocument( "" );
-
-			// Set the base href for the created document
-			// so any parsed elements with URLs
-			// are based on the document's URL (gh-2965)
-			base = context.createElement( "base" );
-			base.href = document.location.href;
-			context.head.appendChild( base );
-		} else {
-			context = document;
-		}
-	}
-
-	parsed = rsingleTag.exec( data );
-	scripts = !keepScripts && [];
-
-	// Single tag
-	if ( parsed ) {
-		return [ context.createElement( parsed[ 1 ] ) ];
-	}
-
-	parsed = buildFragment( [ data ], context, scripts );
-
-	if ( scripts && scripts.length ) {
-		jQuery( scripts ).remove();
-	}
-
-	return jQuery.merge( [], parsed.childNodes );
-};
-
-
-/**
- * Load a url into a page
- */
-jQuery.fn.load = function( url, params, callback ) {
-	var selector, type, response,
-		self = this,
-		off = url.indexOf( " " );
-
-	if ( off > -1 ) {
-		selector = stripAndCollapse( url.slice( off ) );
-		url = url.slice( 0, off );
-	}
-
-	// If it's a function
-	if ( isFunction( params ) ) {
-
-		// We assume that it's the callback
-		callback = params;
-		params = undefined;
-
-	// Otherwise, build a param string
-	} else if ( params && typeof params === "object" ) {
-		type = "POST";
-	}
-
-	// If we have elements to modify, make the request
-	if ( self.length > 0 ) {
-		jQuery.ajax( {
-			url: url,
-
-			// If "type" variable is undefined, then "GET" method will be used.
-			// Make value of this field explicit since
-			// user can override it through ajaxSetup method
-			type: type || "GET",
-			dataType: "html",
-			data: params
-		} ).done( function( responseText ) {
-
-			// Save response for use in complete callback
-			response = arguments;
-
-			self.html( selector ?
-
-				// If a selector was specified, locate the right elements in a dummy div
-				// Exclude scripts to avoid IE 'Permission Denied' errors
-				jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :
-
-				// Otherwise use the full result
-				responseText );
-
-		// If the request succeeds, this function gets "data", "status", "jqXHR"
-		// but they are ignored because response was set above.
-		// If it fails, this function gets "jqXHR", "status", "error"
-		} ).always( callback && function( jqXHR, status ) {
-			self.each( function() {
-				callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
-			} );
-		} );
-	}
-
-	return this;
-};
-
-
-
-
-// Attach a bunch of functions for handling common AJAX events
-jQuery.each( [
-	"ajaxStart",
-	"ajaxStop",
-	"ajaxComplete",
-	"ajaxError",
-	"ajaxSuccess",
-	"ajaxSend"
-], function( i, type ) {
-	jQuery.fn[ type ] = function( fn ) {
-		return this.on( type, fn );
-	};
-} );
-
-
-
-
-jQuery.expr.pseudos.animated = function( elem ) {
-	return jQuery.grep( jQuery.timers, function( fn ) {
-		return elem === fn.elem;
-	} ).length;
-};
-
-
-
-
-jQuery.offset = {
-	setOffset: function( elem, options, i ) {
-		var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
-			position = jQuery.css( elem, "position" ),
-			curElem = jQuery( elem ),
-			props = {};
-
-		// Set position first, in-case top/left are set even on static elem
-		if ( position === "static" ) {
-			elem.style.position = "relative";
-		}
-
-		curOffset = curElem.offset();
-		curCSSTop = jQuery.css( elem, "top" );
-		curCSSLeft = jQuery.css( elem, "left" );
-		calculatePosition = ( position === "absolute" || position === "fixed" ) &&
-			( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;
-
-		// Need to be able to calculate position if either
-		// top or left is auto and position is either absolute or fixed
-		if ( calculatePosition ) {
-			curPosition = curElem.position();
-			curTop = curPosition.top;
-			curLeft = curPosition.left;
-
-		} else {
-			curTop = parseFloat( curCSSTop ) || 0;
-			curLeft = parseFloat( curCSSLeft ) || 0;
-		}
-
-		if ( isFunction( options ) ) {
-
-			// Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
-			options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
-		}
-
-		if ( options.top != null ) {
-			props.top = ( options.top - curOffset.top ) + curTop;
-		}
-		if ( options.left != null ) {
-			props.left = ( options.left - curOffset.left ) + curLeft;
-		}
-
-		if ( "using" in options ) {
-			options.using.call( elem, props );
-
-		} else {
-			curElem.css( props );
-		}
-	}
-};
-
-jQuery.fn.extend( {
-
-	// offset() relates an element's border box to the document origin
-	offset: function( options ) {
-
-		// Preserve chaining for setter
-		if ( arguments.length ) {
-			return options === undefined ?
-				this :
-				this.each( function( i ) {
-					jQuery.offset.setOffset( this, options, i );
-				} );
-		}
-
-		var rect, win,
-			elem = this[ 0 ];
-
-		if ( !elem ) {
-			return;
-		}
-
-		// Return zeros for disconnected and hidden (display: none) elements (gh-2310)
-		// Support: IE <=11 only
-		// Running getBoundingClientRect on a
-		// disconnected node in IE throws an error
-		if ( !elem.getClientRects().length ) {
-			return { top: 0, left: 0 };
-		}
-
-		// Get document-relative position by adding viewport scroll to viewport-relative gBCR
-		rect = elem.getBoundingClientRect();
-		win = elem.ownerDocument.defaultView;
-		return {
-			top: rect.top + win.pageYOffset,
-			left: rect.left + win.pageXOffset
-		};
-	},
-
-	// position() relates an element's margin box to its offset parent's padding box
-	// This corresponds to the behavior of CSS absolute positioning
-	position: function() {
-		if ( !this[ 0 ] ) {
-			return;
-		}
-
-		var offsetParent, offset, doc,
-			elem = this[ 0 ],
-			parentOffset = { top: 0, left: 0 };
-
-		// position:fixed elements are offset from the viewport, which itself always has zero offset
-		if ( jQuery.css( elem, "position" ) === "fixed" ) {
-
-			// Assume position:fixed implies availability of getBoundingClientRect
-			offset = elem.getBoundingClientRect();
-
-		} else {
-			offset = this.offset();
-
-			// Account for the *real* offset parent, which can be the document or its root element
-			// when a statically positioned element is identified
-			doc = elem.ownerDocument;
-			offsetParent = elem.offsetParent || doc.documentElement;
-			while ( offsetParent &&
-				( offsetParent === doc.body || offsetParent === doc.documentElement ) &&
-				jQuery.css( offsetParent, "position" ) === "static" ) {
-
-				offsetParent = offsetParent.parentNode;
-			}
-			if ( offsetParent && offsetParent !== elem && offsetParent.nodeType === 1 ) {
-
-				// Incorporate borders into its offset, since they are outside its content origin
-				parentOffset = jQuery( offsetParent ).offset();
-				parentOffset.top += jQuery.css( offsetParent, "borderTopWidth", true );
-				parentOffset.left += jQuery.css( offsetParent, "borderLeftWidth", true );
-			}
-		}
-
-		// Subtract parent offsets and element margins
-		return {
-			top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
-			left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
-		};
-	},
-
-	// This method will return documentElement in the following cases:
-	// 1) For the element inside the iframe without offsetParent, this method will return
-	//    documentElement of the parent window
-	// 2) For the hidden or detached element
-	// 3) For body or html element, i.e. in case of the html node - it will return itself
-	//
-	// but those exceptions were never presented as a real life use-cases
-	// and might be considered as more preferable results.
-	//
-	// This logic, however, is not guaranteed and can change at any point in the future
-	offsetParent: function() {
-		return this.map( function() {
-			var offsetParent = this.offsetParent;
-
-			while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
-				offsetParent = offsetParent.offsetParent;
-			}
-
-			return offsetParent || documentElement;
-		} );
-	}
-} );
-
-// Create scrollLeft and scrollTop methods
-jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
-	var top = "pageYOffset" === prop;
-
-	jQuery.fn[ method ] = function( val ) {
-		return access( this, function( elem, method, val ) {
-
-			// Coalesce documents and windows
-			var win;
-			if ( isWindow( elem ) ) {
-				win = elem;
-			} else if ( elem.nodeType === 9 ) {
-				win = elem.defaultView;
-			}
-
-			if ( val === undefined ) {
-				return win ? win[ prop ] : elem[ method ];
-			}
-
-			if ( win ) {
-				win.scrollTo(
-					!top ? val : win.pageXOffset,
-					top ? val : win.pageYOffset
-				);
-
-			} else {
-				elem[ method ] = val;
-			}
-		}, method, val, arguments.length );
-	};
-} );
-
-// Support: Safari <=7 - 9.1, Chrome <=37 - 49
-// Add the top/left cssHooks using jQuery.fn.position
-// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
-// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
-// getComputedStyle returns percent when specified for top/left/bottom/right;
-// rather than make the css module depend on the offset module, just check for it here
-jQuery.each( [ "top", "left" ], function( i, prop ) {
-	jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
-		function( elem, computed ) {
-			if ( computed ) {
-				computed = curCSS( elem, prop );
-
-				// If curCSS returns percentage, fallback to offset
-				return rnumnonpx.test( computed ) ?
-					jQuery( elem ).position()[ prop ] + "px" :
-					computed;
-			}
-		}
-	);
-} );
-
-
-// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
-jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
-	jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
-		function( defaultExtra, funcName ) {
-
-		// Margin is only for outerHeight, outerWidth
-		jQuery.fn[ funcName ] = function( margin, value ) {
-			var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
-				extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
-
-			return access( this, function( elem, type, value ) {
-				var doc;
-
-				if ( isWindow( elem ) ) {
-
-					// $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
-					return funcName.indexOf( "outer" ) === 0 ?
-						elem[ "inner" + name ] :
-						elem.document.documentElement[ "client" + name ];
-				}
-
-				// Get document width or height
-				if ( elem.nodeType === 9 ) {
-					doc = elem.documentElement;
-
-					// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
-					// whichever is greatest
-					return Math.max(
-						elem.body[ "scroll" + name ], doc[ "scroll" + name ],
-						elem.body[ "offset" + name ], doc[ "offset" + name ],
-						doc[ "client" + name ]
-					);
-				}
-
-				return value === undefined ?
-
-					// Get width or height on the element, requesting but not forcing parseFloat
-					jQuery.css( elem, type, extra ) :
-
-					// Set width or height on the element
-					jQuery.style( elem, type, value, extra );
-			}, type, chainable ? margin : undefined, chainable );
-		};
-	} );
-} );
-
-
-jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " +
-	"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
-	"change select submit keydown keypress keyup contextmenu" ).split( " " ),
-	function( i, name ) {
-
-	// Handle event binding
-	jQuery.fn[ name ] = function( data, fn ) {
-		return arguments.length > 0 ?
-			this.on( name, null, data, fn ) :
-			this.trigger( name );
-	};
-} );
-
-jQuery.fn.extend( {
-	hover: function( fnOver, fnOut ) {
-		return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
-	}
-} );
-
-
-
-
-jQuery.fn.extend( {
-
-	bind: function( types, data, fn ) {
-		return this.on( types, null, data, fn );
-	},
-	unbind: function( types, fn ) {
-		return this.off( types, null, fn );
-	},
-
-	delegate: function( selector, types, data, fn ) {
-		return this.on( types, selector, data, fn );
-	},
-	undelegate: function( selector, types, fn ) {
-
-		// ( namespace ) or ( selector, types [, fn] )
-		return arguments.length === 1 ?
-			this.off( selector, "**" ) :
-			this.off( types, selector || "**", fn );
-	}
-} );
-
-// Bind a function to a context, optionally partially applying any
-// arguments.
-// jQuery.proxy is deprecated to promote standards (specifically Function#bind)
-// However, it is not slated for removal any time soon
-jQuery.proxy = function( fn, context ) {
-	var tmp, args, proxy;
-
-	if ( typeof context === "string" ) {
-		tmp = fn[ context ];
-		context = fn;
-		fn = tmp;
-	}
-
-	// Quick check to determine if target is callable, in the spec
-	// this throws a TypeError, but we will just return undefined.
-	if ( !isFunction( fn ) ) {
-		return undefined;
-	}
-
-	// Simulated bind
-	args = slice.call( arguments, 2 );
-	proxy = function() {
-		return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
-	};
-
-	// Set the guid of unique handler to the same of original handler, so it can be removed
-	proxy.guid = fn.guid = fn.guid || jQuery.guid++;
-
-	return proxy;
-};
-
-jQuery.holdReady = function( hold ) {
-	if ( hold ) {
-		jQuery.readyWait++;
-	} else {
-		jQuery.ready( true );
-	}
-};
-jQuery.isArray = Array.isArray;
-jQuery.parseJSON = JSON.parse;
-jQuery.nodeName = nodeName;
-jQuery.isFunction = isFunction;
-jQuery.isWindow = isWindow;
-jQuery.camelCase = camelCase;
-jQuery.type = toType;
-
-jQuery.now = Date.now;
-
-jQuery.isNumeric = function( obj ) {
-
-	// As of jQuery 3.0, isNumeric is limited to
-	// strings and numbers (primitives or objects)
-	// that can be coerced to finite numbers (gh-2662)
-	var type = jQuery.type( obj );
-	return ( type === "number" || type === "string" ) &&
-
-		// parseFloat NaNs numeric-cast false positives ("")
-		// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
-		// subtraction forces infinities to NaN
-		!isNaN( obj - parseFloat( obj ) );
-};
-
-
-
-
-// Register as a named AMD module, since jQuery can be concatenated with other
-// files that may use define, but not via a proper concatenation script that
-// understands anonymous AMD modules. A named AMD is safest and most robust
-// way to register. Lowercase jquery is used because AMD module names are
-// derived from file names, and jQuery is normally delivered in a lowercase
-// file name. Do this after creating the global so that if an AMD module wants
-// to call noConflict to hide this version of jQuery, it will work.
-
-// Note that for maximum portability, libraries that are not jQuery should
-// declare themselves as anonymous modules, and avoid setting a global if an
-// AMD loader is present. jQuery is a special case. For more information, see
-// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
-
-if ( typeof define === "function" && define.amd ) {
-	define( "jquery", [], function() {
-		return jQuery;
-	} );
-}
-
-
-
-
-var
-
-	// Map over jQuery in case of overwrite
-	_jQuery = window.jQuery,
-
-	// Map over the $ in case of overwrite
-	_$ = window.$;
-
-jQuery.noConflict = function( deep ) {
-	if ( window.$ === jQuery ) {
-		window.$ = _$;
-	}
-
-	if ( deep && window.jQuery === jQuery ) {
-		window.jQuery = _jQuery;
-	}
-
-	return jQuery;
-};
-
-// Expose jQuery and $ identifiers, even in AMD
-// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
-// and CommonJS for browser emulators (#13566)
-if ( !noGlobal ) {
-	window.jQuery = window.$ = jQuery;
-}
-
-
-
-
-return jQuery;
-} );
diff --git a/docs/_static/jquery.js b/docs/_static/jquery.js
deleted file mode 100644
index a1c07fd8..00000000
--- a/docs/_static/jquery.js
+++ /dev/null
@@ -1,2 +0,0 @@
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i&&(o=e,e=i,i=void 0),e&&!1!==i&&this.queue(i||"fx",[]),this.each(function(){var e=!0,t=null!=i&&i+"queueHooks",n=k.timers,r=Q.get(this);if(t)r[t]&&r[t].stop&&a(r[t]);else for(t in r)r[t]&&r[t].stop&&ut.test(t)&&a(r[t]);for(t=n.length;t--;)n[t].elem!==this||null!=i&&n[t].queue!==i||(n[t].anim.stop(o),e=!1,n.splice(t,1));!e&&o||k.dequeue(this,i)})},finish:function(a){return!1!==a&&(a=a||"fx"),this.each(function(){var e,t=Q.get(this),n=t[a+"queue"],r=t[a+"queueHooks"],i=k.timers,o=n?n.length:0;for(t.finish=!0,k.queue(this,a,[]),r&&r.stop&&r.stop.call(this,!0),e=i.length;e--;)i[e].elem===this&&i[e].queue===a&&(i[e].anim.stop(!0),i.splice(e,1));for(e=0;e<o;e++)n[e]&&n[e].finish&&n[e].finish.call(this);delete t.finish})}}),k.each(["toggle","show","hide"],function(e,r){var i=k.fn[r];k.fn[r]=function(e,t,n){return null==e||"boolean"==typeof e?i.apply(this,arguments):this.animate(ft(r,!0),e,t,n)}}),k.each({slideDown:ft("show"),slideUp:ft("hide"),slideToggle:ft("toggle"),fadeIn:{opacity:"show"},fadeOut:{opacity:"hide"},fadeToggle:{opacity:"toggle"}},function(e,r){k.fn[e]=function(e,t,n){return this.animate(r,e,t,n)}}),k.timers=[],k.fx.tick=function(){var e,t=0,n=k.timers;for(rt=Date.now();t<n.length;t++)(e=n[t])()||n[t]!==e||n.splice(t--,1);n.length||k.fx.stop(),rt=void 0},k.fx.timer=function(e){k.timers.push(e),k.fx.start()},k.fx.interval=13,k.fx.start=function(){it||(it=!0,lt())},k.fx.stop=function(){it=null},k.fx.speeds={slow:600,fast:200,_default:400},k.fn.delay=function(r,e){return r=k.fx&&k.fx.speeds[r]||r,e=e||"fx",this.queue(e,function(e,t){var n=C.setTimeout(e,r);t.stop=function(){C.clearTimeout(n)}})},ot=E.createElement("input"),at=E.createElement("select").appendChild(E.createElement("option")),ot.type="checkbox",y.checkOn=""!==ot.value,y.optSelected=at.selected,(ot=E.createElement("input")).value="t",ot.type="radio",y.radioValue="t"===ot.value;var ht,gt=k.expr.attrHandle;k.fn.extend({attr:function(e,t){return _(this,k.attr,e,t,1<arguments.length)},removeAttr:function(e){return this.each(function(){k.removeAttr(this,e)})}}),k.extend({attr:function(e,t,n){var r,i,o=e.nodeType;if(3!==o&&8!==o&&2!==o)return"undefined"==typeof e.getAttribute?k.prop(e,t,n):(1===o&&k.isXMLDoc(e)||(i=k.attrHooks[t.toLowerCase()]||(k.expr.match.bool.test(t)?ht:void 0)),void 0!==n?null===n?void k.removeAttr(e,t):i&&"set"in i&&void 0!==(r=i.set(e,n,t))?r:(e.setAttribute(t,n+""),n):i&&"get"in i&&null!==(r=i.get(e,t))?r:null==(r=k.find.attr(e,t))?void 0:r)},attrHooks:{type:{set:function(e,t){if(!y.radioValue&&"radio"===t&&A(e,"input")){var n=e.value;return e.setAttribute("type",t),n&&(e.value=n),t}}}},removeAttr:function(e,t){var n,r=0,i=t&&t.match(R);if(i&&1===e.nodeType)while(n=i[r++])e.removeAttribute(n)}}),ht={set:function(e,t,n){return!1===t?k.removeAttr(e,n):e.setAttribute(n,n),n}},k.each(k.expr.match.bool.source.match(/\w+/g),function(e,t){var a=gt[t]||k.find.attr;gt[t]=function(e,t,n){var r,i,o=t.toLowerCase();return n||(i=gt[o],gt[o]=r,r=null!=a(e,t,n)?o:null,gt[o]=i),r}});var vt=/^(?:input|select|textarea|button)$/i,yt=/^(?:a|area)$/i;function mt(e){return(e.match(R)||[]).join(" ")}function xt(e){return e.getAttribute&&e.getAttribute("class")||""}function bt(e){return Array.isArray(e)?e:"string"==typeof e&&e.match(R)||[]}k.fn.extend({prop:function(e,t){return _(this,k.prop,e,t,1<arguments.length)},removeProp:function(e){return this.each(function(){delete this[k.propFix[e]||e]})}}),k.extend({prop:function(e,t,n){var r,i,o=e.nodeType;if(3!==o&&8!==o&&2!==o)return 1===o&&k.isXMLDoc(e)||(t=k.propFix[t]||t,i=k.propHooks[t]),void 0!==n?i&&"set"in i&&void 0!==(r=i.set(e,n,t))?r:e[t]=n:i&&"get"in i&&null!==(r=i.get(e,t))?r:e[t]},propHooks:{tabIndex:{get:function(e){var t=k.find.attr(e,"tabindex");return t?parseInt(t,10):vt.test(e.nodeName)||yt.test(e.nodeName)&&e.href?0:-1}}},propFix:{"for":"htmlFor","class":"className"}}),y.optSelected||(k.propHooks.selected={get:function(e){var t=e.parentNode;return t&&t.parentNode&&t.parentNode.selectedIndex,null},set:function(e){var t=e.parentNode;t&&(t.selectedIndex,t.parentNode&&t.parentNode.selectedIndex)}}),k.each(["tabIndex","readOnly","maxLength","cellSpacing","cellPadding","rowSpan","colSpan","useMap","frameBorder","contentEditable"],function(){k.propFix[this.toLowerCase()]=this}),k.fn.extend({addClass:function(t){var e,n,r,i,o,a,s,u=0;if(m(t))return this.each(function(e){k(this).addClass(t.call(this,e,xt(this)))});if((e=bt(t)).length)while(n=this[u++])if(i=xt(n),r=1===n.nodeType&&" "+mt(i)+" 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null!=t?t:mt(k.text(e))}},select:{get:function(e){var t,n,r,i=e.options,o=e.selectedIndex,a="select-one"===e.type,s=a?null:[],u=a?o+1:i.length;for(r=o<0?u:a?o:0;r<u;r++)if(((n=i[r]).selected||r===o)&&!n.disabled&&(!n.parentNode.disabled||!A(n.parentNode,"optgroup"))){if(t=k(n).val(),a)return t;s.push(t)}return s},set:function(e,t){var n,r,i=e.options,o=k.makeArray(t),a=i.length;while(a--)((r=i[a]).selected=-1<k.inArray(k.valHooks.option.get(r),o))&&(n=!0);return n||(e.selectedIndex=-1),o}}}}),k.each(["radio","checkbox"],function(){k.valHooks[this]={set:function(e,t){if(Array.isArray(t))return e.checked=-1<k.inArray(k(e).val(),t)}},y.checkOn||(k.valHooks[this].get=function(e){return null===e.getAttribute("value")?"on":e.value})}),y.focusin="onfocusin"in C;var Tt=/^(?:focusinfocus|focusoutblur)$/,Ct=function(e){e.stopPropagation()};k.extend(k.event,{trigger:function(e,t,n,r){var i,o,a,s,u,l,c,f,p=[n||E],d=v.call(e,"type")?e.type:e,h=v.call(e,"namespace")?e.namespace.split("."):[];if(o=f=a=n=n||E,3!==n.nodeType&&8!==n.nodeType&&!Tt.test(d+k.event.triggered)&&(-1<d.indexOf(".")&&(d=(h=d.split(".")).shift(),h.sort()),u=d.indexOf(":")<0&&"on"+d,(e=e[k.expando]?e:new k.Event(d,"object"==typeof e&&e)).isTrigger=r?2:3,e.namespace=h.join("."),e.rnamespace=e.namespace?new RegExp("(^|\\.)"+h.join("\\.(?:.*\\.|)")+"(\\.|$)"):null,e.result=void 0,e.target||(e.target=n),t=null==t?[e]:k.makeArray(t,[e]),c=k.event.special[d]||{},r||!c.trigger||!1!==c.trigger.apply(n,t))){if(!r&&!c.noBubble&&!x(n)){for(s=c.delegateType||d,Tt.test(s+d)||(o=o.parentNode);o;o=o.parentNode)p.push(o),a=o;a===(n.ownerDocument||E)&&p.push(a.defaultView||a.parentWindow||C)}i=0;while((o=p[i++])&&!e.isPropagationStopped())f=o,e.type=1<i?s:c.bindType||d,(l=(Q.get(o,"events")||{})[e.type]&&Q.get(o,"handle"))&&l.apply(o,t),(l=u&&o[u])&&l.apply&&G(o)&&(e.result=l.apply(o,t),!1===e.result&&e.preventDefault());return e.type=d,r||e.isDefaultPrevented()||c._default&&!1!==c._default.apply(p.pop(),t)||!G(n)||u&&m(n[d])&&!x(n)&&((a=n[u])&&(n[u]=null),k.event.triggered=d,e.isPropagationStopped()&&f.addEventListener(d,Ct),n[d](),e.isPropagationStopped()&&f.removeEventListener(d,Ct),k.event.triggered=void 0,a&&(n[u]=a)),e.result}},simulate:function(e,t,n){var r=k.extend(new 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diff --git a/docs/_static/language_data.js b/docs/_static/language_data.js
deleted file mode 100644
index 5266fb19..00000000
--- a/docs/_static/language_data.js
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- * language_data.js
- * ~~~~~~~~~~~~~~~~
- *
- * This script contains the language-specific data used by searchtools.js,
- * namely the list of stopwords, stemmer, scorer and splitter.
- *
- * :copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
- * :license: BSD, see LICENSE for details.
- *
- */
-
-var stopwords = ["a","and","are","as","at","be","but","by","for","if","in","into","is","it","near","no","not","of","on","or","such","that","the","their","then","there","these","they","this","to","was","will","with"];
-
-
-/* Non-minified version JS is _stemmer.js if file is provided */ 
-/**
- * Porter Stemmer
- */
-var Stemmer = function() {
-
-  var step2list = {
-    ational: 'ate',
-    tional: 'tion',
-    enci: 'ence',
-    anci: 'ance',
-    izer: 'ize',
-    bli: 'ble',
-    alli: 'al',
-    entli: 'ent',
-    eli: 'e',
-    ousli: 'ous',
-    ization: 'ize',
-    ation: 'ate',
-    ator: 'ate',
-    alism: 'al',
-    iveness: 'ive',
-    fulness: 'ful',
-    ousness: 'ous',
-    aliti: 'al',
-    iviti: 'ive',
-    biliti: 'ble',
-    logi: 'log'
-  };
-
-  var step3list = {
-    icate: 'ic',
-    ative: '',
-    alize: 'al',
-    iciti: 'ic',
-    ical: 'ic',
-    ful: '',
-    ness: ''
-  };
-
-  var c = "[^aeiou]";          // consonant
-  var v = "[aeiouy]";          // vowel
-  var C = c + "[^aeiouy]*";    // consonant sequence
-  var V = v + "[aeiou]*";      // vowel sequence
-
-  var mgr0 = "^(" + C + ")?" + V + C;                      // [C]VC... is m>0
-  var meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$";    // [C]VC[V] is m=1
-  var mgr1 = "^(" + C + ")?" + V + C + V + C;              // [C]VCVC... is m>1
-  var s_v   = "^(" + C + ")?" + v;                         // vowel in stem
-
-  this.stemWord = function (w) {
-    var stem;
-    var suffix;
-    var firstch;
-    var origword = w;
-
-    if (w.length < 3)
-      return w;
-
-    var re;
-    var re2;
-    var re3;
-    var re4;
-
-    firstch = w.substr(0,1);
-    if (firstch == "y")
-      w = firstch.toUpperCase() + w.substr(1);
-
-    // Step 1a
-    re = /^(.+?)(ss|i)es$/;
-    re2 = /^(.+?)([^s])s$/;
-
-    if (re.test(w))
-      w = w.replace(re,"$1$2");
-    else if (re2.test(w))
-      w = w.replace(re2,"$1$2");
-
-    // Step 1b
-    re = /^(.+?)eed$/;
-    re2 = /^(.+?)(ed|ing)$/;
-    if (re.test(w)) {
-      var fp = re.exec(w);
-      re = new RegExp(mgr0);
-      if (re.test(fp[1])) {
-        re = /.$/;
-        w = w.replace(re,"");
-      }
-    }
-    else if (re2.test(w)) {
-      var fp = re2.exec(w);
-      stem = fp[1];
-      re2 = new RegExp(s_v);
-      if (re2.test(stem)) {
-        w = stem;
-        re2 = /(at|bl|iz)$/;
-        re3 = new RegExp("([^aeiouylsz])\\1$");
-        re4 = new RegExp("^" + C + v + "[^aeiouwxy]$");
-        if (re2.test(w))
-          w = w + "e";
-        else if (re3.test(w)) {
-          re = /.$/;
-          w = w.replace(re,"");
-        }
-        else if (re4.test(w))
-          w = w + "e";
-      }
-    }
-
-    // Step 1c
-    re = /^(.+?)y$/;
-    if (re.test(w)) {
-      var fp = re.exec(w);
-      stem = fp[1];
-      re = new RegExp(s_v);
-      if (re.test(stem))
-        w = stem + "i";
-    }
-
-    // Step 2
-    re = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;
-    if (re.test(w)) {
-      var fp = re.exec(w);
-      stem = fp[1];
-      suffix = fp[2];
-      re = new RegExp(mgr0);
-      if (re.test(stem))
-        w = stem + step2list[suffix];
-    }
-
-    // Step 3
-    re = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;
-    if (re.test(w)) {
-      var fp = re.exec(w);
-      stem = fp[1];
-      suffix = fp[2];
-      re = new RegExp(mgr0);
-      if (re.test(stem))
-        w = stem + step3list[suffix];
-    }
-
-    // Step 4
-    re = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;
-    re2 = /^(.+?)(s|t)(ion)$/;
-    if (re.test(w)) {
-      var fp = re.exec(w);
-      stem = fp[1];
-      re = new RegExp(mgr1);
-      if (re.test(stem))
-        w = stem;
-    }
-    else if (re2.test(w)) {
-      var fp = re2.exec(w);
-      stem = fp[1] + fp[2];
-      re2 = new RegExp(mgr1);
-      if (re2.test(stem))
-        w = stem;
-    }
-
-    // Step 5
-    re = /^(.+?)e$/;
-    if (re.test(w)) {
-      var fp = re.exec(w);
-      stem = fp[1];
-      re = new RegExp(mgr1);
-      re2 = new RegExp(meq1);
-      re3 = new RegExp("^" + C + v + "[^aeiouwxy]$");
-      if (re.test(stem) || (re2.test(stem) && !(re3.test(stem))))
-        w = stem;
-    }
-    re = /ll$/;
-    re2 = new RegExp(mgr1);
-    if (re.test(w) && re2.test(w)) {
-      re = /.$/;
-      w = w.replace(re,"");
-    }
-
-    // and turn initial Y back to y
-    if (firstch == "y")
-      w = firstch.toLowerCase() + w.substr(1);
-    return w;
-  }
-}
-
-
-
-
-
-var splitChars = (function() {
-    var result = {};
-    var singles = [96, 180, 187, 191, 215, 247, 749, 885, 903, 907, 909, 930, 1014, 1648,
-         1748, 1809, 2416, 2473, 2481, 2526, 2601, 2609, 2612, 2615, 2653, 2702,
-         2706, 2729, 2737, 2740, 2857, 2865, 2868, 2910, 2928, 2948, 2961, 2971,
-         2973, 3085, 3089, 3113, 3124, 3213, 3217, 3241, 3252, 3295, 3341, 3345,
-         3369, 3506, 3516, 3633, 3715, 3721, 3736, 3744, 3748, 3750, 3756, 3761,
-         3781, 3912, 4239, 4347, 4681, 4695, 4697, 4745, 4785, 4799, 4801, 4823,
-         4881, 5760, 5901, 5997, 6313, 7405, 8024, 8026, 8028, 8030, 8117, 8125,
-         8133, 8181, 8468, 8485, 8487, 8489, 8494, 8527, 11311, 11359, 11687, 11695,
-         11703, 11711, 11719, 11727, 11735, 12448, 12539, 43010, 43014, 43019, 43587,
-         43696, 43713, 64286, 64297, 64311, 64317, 64319, 64322, 64325, 65141];
-    var i, j, start, end;
-    for (i = 0; i < singles.length; i++) {
-        result[singles[i]] = true;
-    }
-    var ranges = [[0, 47], [58, 64], [91, 94], [123, 169], [171, 177], [182, 184], [706, 709],
-         [722, 735], [741, 747], [751, 879], [888, 889], [894, 901], [1154, 1161],
-         [1318, 1328], [1367, 1368], [1370, 1376], [1416, 1487], [1515, 1519], [1523, 1568],
-         [1611, 1631], [1642, 1645], [1750, 1764], [1767, 1773], [1789, 1790], [1792, 1807],
-         [1840, 1868], [1958, 1968], [1970, 1983], [2027, 2035], [2038, 2041], [2043, 2047],
-         [2070, 2073], [2075, 2083], [2085, 2087], [2089, 2307], [2362, 2364], [2366, 2383],
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-         [2677, 2692], [2746, 2748], [2750, 2767], [2769, 2783], [2786, 2789], [2800, 2820],
-         [2829, 2830], [2833, 2834], [2874, 2876], [2878, 2907], [2914, 2917], [2930, 2946],
-         [2955, 2957], [2966, 2968], [2976, 2978], [2981, 2983], [2987, 2989], [3002, 3023],
-         [3025, 3045], [3059, 3076], [3130, 3132], [3134, 3159], [3162, 3167], [3170, 3173],
-         [3184, 3191], [3199, 3204], [3258, 3260], [3262, 3293], [3298, 3301], [3312, 3332],
-         [3386, 3388], [3390, 3423], [3426, 3429], [3446, 3449], [3456, 3460], [3479, 3481],
-         [3518, 3519], [3527, 3584], [3636, 3647], [3655, 3663], [3674, 3712], [3717, 3718],
-         [3723, 3724], [3726, 3731], [3752, 3753], [3764, 3772], [3774, 3775], [3783, 3791],
-         [3802, 3803], [3806, 3839], [3841, 3871], [3892, 3903], [3949, 3975], [3980, 4095],
-         [4139, 4158], [4170, 4175], [4182, 4185], [4190, 4192], [4194, 4196], [4199, 4205],
-         [4209, 4212], [4226, 4237], [4250, 4255], [4294, 4303], [4349, 4351], [4686, 4687],
-         [4702, 4703], [4750, 4751], [4790, 4791], [4806, 4807], [4886, 4887], [4955, 4968],
-         [4989, 4991], [5008, 5023], [5109, 5120], [5741, 5742], [5787, 5791], [5867, 5869],
-         [5873, 5887], [5906, 5919], [5938, 5951], [5970, 5983], [6001, 6015], [6068, 6102],
-         [6104, 6107], [6109, 6111], [6122, 6127], [6138, 6159], [6170, 6175], [6264, 6271],
-         [6315, 6319], [6390, 6399], [6429, 6469], [6510, 6511], [6517, 6527], [6572, 6592],
-         [6600, 6607], [6619, 6655], [6679, 6687], [6741, 6783], [6794, 6799], [6810, 6822],
-         [6824, 6916], [6964, 6980], [6988, 6991], [7002, 7042], [7073, 7085], [7098, 7167],
-         [7204, 7231], [7242, 7244], [7294, 7400], [7410, 7423], [7616, 7679], [7958, 7959],
-         [7966, 7967], [8006, 8007], [8014, 8015], [8062, 8063], [8127, 8129], [8141, 8143],
-         [8148, 8149], [8156, 8159], [8173, 8177], [8189, 8303], [8306, 8307], [8314, 8318],
-         [8330, 8335], [8341, 8449], [8451, 8454], [8456, 8457], [8470, 8472], [8478, 8483],
-         [8506, 8507], [8512, 8516], [8522, 8525], [8586, 9311], [9372, 9449], [9472, 10101],
-         [10132, 11263], [11493, 11498], [11503, 11516], [11518, 11519], [11558, 11567],
-         [11622, 11630], [11632, 11647], [11671, 11679], [11743, 11822], [11824, 12292],
-         [12296, 12320], [12330, 12336], [12342, 12343], [12349, 12352], [12439, 12444],
-         [12544, 12548], [12590, 12592], [12687, 12689], [12694, 12703], [12728, 12783],
-         [12800, 12831], [12842, 12880], [12896, 12927], [12938, 12976], [12992, 13311],
-         [19894, 19967], [40908, 40959], [42125, 42191], [42238, 42239], [42509, 42511],
-         [42540, 42559], [42592, 42593], [42607, 42622], [42648, 42655], [42736, 42774],
-         [42784, 42785], [42889, 42890], [42893, 43002], [43043, 43055], [43062, 43071],
-         [43124, 43137], [43188, 43215], [43226, 43249], [43256, 43258], [43260, 43263],
-         [43302, 43311], [43335, 43359], [43389, 43395], [43443, 43470], [43482, 43519],
-         [43561, 43583], [43596, 43599], [43610, 43615], [43639, 43641], [43643, 43647],
-         [43698, 43700], [43703, 43704], [43710, 43711], [43715, 43738], [43742, 43967],
-         [44003, 44015], [44026, 44031], [55204, 55215], [55239, 55242], [55292, 55295],
-         [57344, 63743], [64046, 64047], [64110, 64111], [64218, 64255], [64263, 64274],
-         [64280, 64284], [64434, 64466], [64830, 64847], [64912, 64913], [64968, 65007],
-         [65020, 65135], [65277, 65295], [65306, 65312], [65339, 65344], [65371, 65381],
-         [65471, 65473], [65480, 65481], [65488, 65489], [65496, 65497]];
-    for (i = 0; i < ranges.length; i++) {
-        start = ranges[i][0];
-        end = ranges[i][1];
-        for (j = start; j <= end; j++) {
-            result[j] = true;
-        }
-    }
-    return result;
-})();
-
-function splitQuery(query) {
-    var result = [];
-    var start = -1;
-    for (var i = 0; i < query.length; i++) {
-        if (splitChars[query.charCodeAt(i)]) {
-            if (start !== -1) {
-                result.push(query.slice(start, i));
-                start = -1;
-            }
-        } else if (start === -1) {
-            start = i;
-        }
-    }
-    if (start !== -1) {
-        result.push(query.slice(start));
-    }
-    return result;
-}
-
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diff --git a/docs/_static/minus.png b/docs/_static/minus.png
deleted file mode 100644
index d96755fd..00000000
Binary files a/docs/_static/minus.png and /dev/null differ
diff --git a/docs/_static/nature.css b/docs/_static/nature.css
deleted file mode 100644
index 5fb55b12..00000000
--- a/docs/_static/nature.css
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@@ -1,252 +0,0 @@
-/*
- * nature.css_t
- * ~~~~~~~~~~~~
- *
- * Sphinx stylesheet -- nature theme.
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- * :copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
- * :license: BSD, see LICENSE for details.
- *
- */
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\ No newline at end of file
diff --git a/docs/_static/plus.png b/docs/_static/plus.png
deleted file mode 100644
index 7107cec9..00000000
Binary files a/docs/_static/plus.png and /dev/null differ
diff --git a/docs/_static/pygments.css b/docs/_static/pygments.css
deleted file mode 100644
index b0ec841f..00000000
--- a/docs/_static/pygments.css
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-.highlight .nn { color: #000000 } /* Name.Namespace */
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-.highlight .nv { color: #000000 } /* Name.Variable */
-.highlight .ow { color: #204a87; font-weight: bold } /* Operator.Word */
-.highlight .w { color: #f8f8f8; text-decoration: underline } /* Text.Whitespace */
-.highlight .mb { color: #0000cf; font-weight: bold } /* Literal.Number.Bin */
-.highlight .mf { color: #0000cf; font-weight: bold } /* Literal.Number.Float */
-.highlight .mh { color: #0000cf; font-weight: bold } /* Literal.Number.Hex */
-.highlight .mi { color: #0000cf; font-weight: bold } /* Literal.Number.Integer */
-.highlight .mo { color: #0000cf; font-weight: bold } /* Literal.Number.Oct */
-.highlight .sa { color: #4e9a06 } /* Literal.String.Affix */
-.highlight .sb { color: #4e9a06 } /* Literal.String.Backtick */
-.highlight .sc { color: #4e9a06 } /* Literal.String.Char */
-.highlight .dl { color: #4e9a06 } /* Literal.String.Delimiter */
-.highlight .sd { color: #8f5902; font-style: italic } /* Literal.String.Doc */
-.highlight .s2 { color: #4e9a06 } /* Literal.String.Double */
-.highlight .se { color: #4e9a06 } /* Literal.String.Escape */
-.highlight .sh { color: #4e9a06 } /* Literal.String.Heredoc */
-.highlight .si { color: #4e9a06 } /* Literal.String.Interpol */
-.highlight .sx { color: #4e9a06 } /* Literal.String.Other */
-.highlight .sr { color: #4e9a06 } /* Literal.String.Regex */
-.highlight .s1 { color: #4e9a06 } /* Literal.String.Single */
-.highlight .ss { color: #4e9a06 } /* Literal.String.Symbol */
-.highlight .bp { color: #3465a4 } /* Name.Builtin.Pseudo */
-.highlight .fm { color: #000000 } /* Name.Function.Magic */
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diff --git a/docs/_static/searchtools.js b/docs/_static/searchtools.js
deleted file mode 100644
index ad845872..00000000
--- a/docs/_static/searchtools.js
+++ /dev/null
@@ -1,506 +0,0 @@
-/*
- * searchtools.js
- * ~~~~~~~~~~~~~~~~
- *
- * Sphinx JavaScript utilities for the full-text search.
- *
- * :copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
- * :license: BSD, see LICENSE for details.
- *
- */
-
-if (!Scorer) {
-  /**
-   * Simple result scoring code.
-   */
-  var Scorer = {
-    // Implement the following function to further tweak the score for each result
-    // The function takes a result array [filename, title, anchor, descr, score]
-    // and returns the new score.
-    /*
-    score: function(result) {
-      return result[4];
-    },
-    */
-
-    // query matches the full name of an object
-    objNameMatch: 11,
-    // or matches in the last dotted part of the object name
-    objPartialMatch: 6,
-    // Additive scores depending on the priority of the object
-    objPrio: {0:  15,   // used to be importantResults
-              1:  5,   // used to be objectResults
-              2: -5},  // used to be unimportantResults
-    //  Used when the priority is not in the mapping.
-    objPrioDefault: 0,
-
-    // query found in title
-    title: 15,
-    partialTitle: 7,
-    // query found in terms
-    term: 5,
-    partialTerm: 2
-  };
-}
-
-if (!splitQuery) {
-  function splitQuery(query) {
-    return query.split(/\s+/);
-  }
-}
-
-/**
- * Search Module
- */
-var Search = {
-
-  _index : null,
-  _queued_query : null,
-  _pulse_status : -1,
-
-  htmlToText : function(htmlString) {
-      var htmlElement = document.createElement('span');
-      htmlElement.innerHTML = htmlString;
-      $(htmlElement).find('.headerlink').remove();
-      docContent = $(htmlElement).find('[role=main]')[0];
-      return docContent.textContent || docContent.innerText;
-  },
-
-  init : function() {
-      var params = $.getQueryParameters();
-      if (params.q) {
-          var query = params.q[0];
-          $('input[name="q"]')[0].value = query;
-          this.performSearch(query);
-      }
-  },
-
-  loadIndex : function(url) {
-    $.ajax({type: "GET", url: url, data: null,
-            dataType: "script", cache: true,
-            complete: function(jqxhr, textstatus) {
-              if (textstatus != "success") {
-                document.getElementById("searchindexloader").src = url;
-              }
-            }});
-  },
-
-  setIndex : function(index) {
-    var q;
-    this._index = index;
-    if ((q = this._queued_query) !== null) {
-      this._queued_query = null;
-      Search.query(q);
-    }
-  },
-
-  hasIndex : function() {
-      return this._index !== null;
-  },
-
-  deferQuery : function(query) {
-      this._queued_query = query;
-  },
-
-  stopPulse : function() {
-      this._pulse_status = 0;
-  },
-
-  startPulse : function() {
-    if (this._pulse_status >= 0)
-        return;
-    function pulse() {
-      var i;
-      Search._pulse_status = (Search._pulse_status + 1) % 4;
-      var dotString = '';
-      for (i = 0; i < Search._pulse_status; i++)
-        dotString += '.';
-      Search.dots.text(dotString);
-      if (Search._pulse_status > -1)
-        window.setTimeout(pulse, 500);
-    }
-    pulse();
-  },
-
-  /**
-   * perform a search for something (or wait until index is loaded)
-   */
-  performSearch : function(query) {
-    // create the required interface elements
-    this.out = $('#search-results');
-    this.title = $('<h2>' + _('Searching') + '</h2>').appendTo(this.out);
-    this.dots = $('<span></span>').appendTo(this.title);
-    this.status = $('<p class="search-summary">&nbsp;</p>').appendTo(this.out);
-    this.output = $('<ul class="search"/>').appendTo(this.out);
-
-    $('#search-progress').text(_('Preparing search...'));
-    this.startPulse();
-
-    // index already loaded, the browser was quick!
-    if (this.hasIndex())
-      this.query(query);
-    else
-      this.deferQuery(query);
-  },
-
-  /**
-   * execute search (requires search index to be loaded)
-   */
-  query : function(query) {
-    var i;
-
-    // stem the searchterms and add them to the correct list
-    var stemmer = new Stemmer();
-    var searchterms = [];
-    var excluded = [];
-    var hlterms = [];
-    var tmp = splitQuery(query);
-    var objectterms = [];
-    for (i = 0; i < tmp.length; i++) {
-      if (tmp[i] !== "") {
-          objectterms.push(tmp[i].toLowerCase());
-      }
-
-      if ($u.indexOf(stopwords, tmp[i].toLowerCase()) != -1 || tmp[i].match(/^\d+$/) ||
-          tmp[i] === "") {
-        // skip this "word"
-        continue;
-      }
-      // stem the word
-      var word = stemmer.stemWord(tmp[i].toLowerCase());
-      // prevent stemmer from cutting word smaller than two chars
-      if(word.length < 3 && tmp[i].length >= 3) {
-        word = tmp[i];
-      }
-      var toAppend;
-      // select the correct list
-      if (word[0] == '-') {
-        toAppend = excluded;
-        word = word.substr(1);
-      }
-      else {
-        toAppend = searchterms;
-        hlterms.push(tmp[i].toLowerCase());
-      }
-      // only add if not already in the list
-      if (!$u.contains(toAppend, word))
-        toAppend.push(word);
-    }
-    var highlightstring = '?highlight=' + $.urlencode(hlterms.join(" "));
-
-    // console.debug('SEARCH: searching for:');
-    // console.info('required: ', searchterms);
-    // console.info('excluded: ', excluded);
-
-    // prepare search
-    var terms = this._index.terms;
-    var titleterms = this._index.titleterms;
-
-    // array of [filename, title, anchor, descr, score]
-    var results = [];
-    $('#search-progress').empty();
-
-    // lookup as object
-    for (i = 0; i < objectterms.length; i++) {
-      var others = [].concat(objectterms.slice(0, i),
-                             objectterms.slice(i+1, objectterms.length));
-      results = results.concat(this.performObjectSearch(objectterms[i], others));
-    }
-
-    // lookup as search terms in fulltext
-    results = results.concat(this.performTermsSearch(searchterms, excluded, terms, titleterms));
-
-    // let the scorer override scores with a custom scoring function
-    if (Scorer.score) {
-      for (i = 0; i < results.length; i++)
-        results[i][4] = Scorer.score(results[i]);
-    }
-
-    // now sort the results by score (in opposite order of appearance, since the
-    // display function below uses pop() to retrieve items) and then
-    // alphabetically
-    results.sort(function(a, b) {
-      var left = a[4];
-      var right = b[4];
-      if (left > right) {
-        return 1;
-      } else if (left < right) {
-        return -1;
-      } else {
-        // same score: sort alphabetically
-        left = a[1].toLowerCase();
-        right = b[1].toLowerCase();
-        return (left > right) ? -1 : ((left < right) ? 1 : 0);
-      }
-    });
-
-    // for debugging
-    //Search.lastresults = results.slice();  // a copy
-    //console.info('search results:', Search.lastresults);
-
-    // print the results
-    var resultCount = results.length;
-    function displayNextItem() {
-      // results left, load the summary and display it
-      if (results.length) {
-        var item = results.pop();
-        var listItem = $('<li style="display:none"></li>');
-        if (DOCUMENTATION_OPTIONS.BUILDER === 'dirhtml') {
-          // dirhtml builder
-          var dirname = item[0] + '/';
-          if (dirname.match(/\/index\/$/)) {
-            dirname = dirname.substring(0, dirname.length-6);
-          } else if (dirname == 'index/') {
-            dirname = '';
-          }
-          listItem.append($('<a/>').attr('href',
-            DOCUMENTATION_OPTIONS.URL_ROOT + dirname +
-            highlightstring + item[2]).html(item[1]));
-        } else {
-          // normal html builders
-          listItem.append($('<a/>').attr('href',
-            item[0] + DOCUMENTATION_OPTIONS.FILE_SUFFIX +
-            highlightstring + item[2]).html(item[1]));
-        }
-        if (item[3]) {
-          listItem.append($('<span> (' + item[3] + ')</span>'));
-          Search.output.append(listItem);
-          listItem.slideDown(5, function() {
-            displayNextItem();
-          });
-        } else if (DOCUMENTATION_OPTIONS.HAS_SOURCE) {
-          $.ajax({url: DOCUMENTATION_OPTIONS.URL_ROOT + item[0] + DOCUMENTATION_OPTIONS.FILE_SUFFIX,
-                  dataType: "text",
-                  complete: function(jqxhr, textstatus) {
-                    var data = jqxhr.responseText;
-                    if (data !== '' && data !== undefined) {
-                      listItem.append(Search.makeSearchSummary(data, searchterms, hlterms));
-                    }
-                    Search.output.append(listItem);
-                    listItem.slideDown(5, function() {
-                      displayNextItem();
-                    });
-                  }});
-        } else {
-          // no source available, just display title
-          Search.output.append(listItem);
-          listItem.slideDown(5, function() {
-            displayNextItem();
-          });
-        }
-      }
-      // search finished, update title and status message
-      else {
-        Search.stopPulse();
-        Search.title.text(_('Search Results'));
-        if (!resultCount)
-          Search.status.text(_('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.'));
-        else
-            Search.status.text(_('Search finished, found %s page(s) matching the search query.').replace('%s', resultCount));
-        Search.status.fadeIn(500);
-      }
-    }
-    displayNextItem();
-  },
-
-  /**
-   * search for object names
-   */
-  performObjectSearch : function(object, otherterms) {
-    var filenames = this._index.filenames;
-    var docnames = this._index.docnames;
-    var objects = this._index.objects;
-    var objnames = this._index.objnames;
-    var titles = this._index.titles;
-
-    var i;
-    var results = [];
-
-    for (var prefix in objects) {
-      for (var name in objects[prefix]) {
-        var fullname = (prefix ? prefix + '.' : '') + name;
-        var fullnameLower = fullname.toLowerCase()
-        if (fullnameLower.indexOf(object) > -1) {
-          var score = 0;
-          var parts = fullnameLower.split('.');
-          // check for different match types: exact matches of full name or
-          // "last name" (i.e. last dotted part)
-          if (fullnameLower == object || parts[parts.length - 1] == object) {
-            score += Scorer.objNameMatch;
-          // matches in last name
-          } else if (parts[parts.length - 1].indexOf(object) > -1) {
-            score += Scorer.objPartialMatch;
-          }
-          var match = objects[prefix][name];
-          var objname = objnames[match[1]][2];
-          var title = titles[match[0]];
-          // If more than one term searched for, we require other words to be
-          // found in the name/title/description
-          if (otherterms.length > 0) {
-            var haystack = (prefix + ' ' + name + ' ' +
-                            objname + ' ' + title).toLowerCase();
-            var allfound = true;
-            for (i = 0; i < otherterms.length; i++) {
-              if (haystack.indexOf(otherterms[i]) == -1) {
-                allfound = false;
-                break;
-              }
-            }
-            if (!allfound) {
-              continue;
-            }
-          }
-          var descr = objname + _(', in ') + title;
-
-          var anchor = match[3];
-          if (anchor === '')
-            anchor = fullname;
-          else if (anchor == '-')
-            anchor = objnames[match[1]][1] + '-' + fullname;
-          // add custom score for some objects according to scorer
-          if (Scorer.objPrio.hasOwnProperty(match[2])) {
-            score += Scorer.objPrio[match[2]];
-          } else {
-            score += Scorer.objPrioDefault;
-          }
-          results.push([docnames[match[0]], fullname, '#'+anchor, descr, score, filenames[match[0]]]);
-        }
-      }
-    }
-
-    return results;
-  },
-
-  /**
-   * search for full-text terms in the index
-   */
-  performTermsSearch : function(searchterms, excluded, terms, titleterms) {
-    var docnames = this._index.docnames;
-    var filenames = this._index.filenames;
-    var titles = this._index.titles;
-
-    var i, j, file;
-    var fileMap = {};
-    var scoreMap = {};
-    var results = [];
-
-    // perform the search on the required terms
-    for (i = 0; i < searchterms.length; i++) {
-      var word = searchterms[i];
-      var files = [];
-      var _o = [
-        {files: terms[word], score: Scorer.term},
-        {files: titleterms[word], score: Scorer.title}
-      ];
-      // add support for partial matches
-      if (word.length > 2) {
-        for (var w in terms) {
-          if (w.match(word) && !terms[word]) {
-            _o.push({files: terms[w], score: Scorer.partialTerm})
-          }
-        }
-        for (var w in titleterms) {
-          if (w.match(word) && !titleterms[word]) {
-              _o.push({files: titleterms[w], score: Scorer.partialTitle})
-          }
-        }
-      }
-
-      // no match but word was a required one
-      if ($u.every(_o, function(o){return o.files === undefined;})) {
-        break;
-      }
-      // found search word in contents
-      $u.each(_o, function(o) {
-        var _files = o.files;
-        if (_files === undefined)
-          return
-
-        if (_files.length === undefined)
-          _files = [_files];
-        files = files.concat(_files);
-
-        // set score for the word in each file to Scorer.term
-        for (j = 0; j < _files.length; j++) {
-          file = _files[j];
-          if (!(file in scoreMap))
-            scoreMap[file] = {};
-          scoreMap[file][word] = o.score;
-        }
-      });
-
-      // create the mapping
-      for (j = 0; j < files.length; j++) {
-        file = files[j];
-        if (file in fileMap && fileMap[file].indexOf(word) === -1)
-          fileMap[file].push(word);
-        else
-          fileMap[file] = [word];
-      }
-    }
-
-    // now check if the files don't contain excluded terms
-    for (file in fileMap) {
-      var valid = true;
-
-      // check if all requirements are matched
-      var filteredTermCount = // as search terms with length < 3 are discarded: ignore
-        searchterms.filter(function(term){return term.length > 2}).length
-      if (
-        fileMap[file].length != searchterms.length &&
-        fileMap[file].length != filteredTermCount
-      ) continue;
-
-      // ensure that none of the excluded terms is in the search result
-      for (i = 0; i < excluded.length; i++) {
-        if (terms[excluded[i]] == file ||
-            titleterms[excluded[i]] == file ||
-            $u.contains(terms[excluded[i]] || [], file) ||
-            $u.contains(titleterms[excluded[i]] || [], file)) {
-          valid = false;
-          break;
-        }
-      }
-
-      // if we have still a valid result we can add it to the result list
-      if (valid) {
-        // select one (max) score for the file.
-        // for better ranking, we should calculate ranking by using words statistics like basic tf-idf...
-        var score = $u.max($u.map(fileMap[file], function(w){return scoreMap[file][w]}));
-        results.push([docnames[file], titles[file], '', null, score, filenames[file]]);
-      }
-    }
-    return results;
-  },
-
-  /**
-   * helper function to return a node containing the
-   * search summary for a given text. keywords is a list
-   * of stemmed words, hlwords is the list of normal, unstemmed
-   * words. the first one is used to find the occurrence, the
-   * latter for highlighting it.
-   */
-  makeSearchSummary : function(htmlText, keywords, hlwords) {
-    var text = Search.htmlToText(htmlText);
-    var textLower = text.toLowerCase();
-    var start = 0;
-    $.each(keywords, function() {
-      var i = textLower.indexOf(this.toLowerCase());
-      if (i > -1)
-        start = i;
-    });
-    start = Math.max(start - 120, 0);
-    var excerpt = ((start > 0) ? '...' : '') +
-      $.trim(text.substr(start, 240)) +
-      ((start + 240 - text.length) ? '...' : '');
-    var rv = $('<div class="context"></div>').text(excerpt);
-    $.each(hlwords, function() {
-      rv = rv.highlightText(this, 'highlighted');
-    });
-    return rv;
-  }
-};
-
-$(document).ready(function() {
-  Search.init();
-});
diff --git a/docs/_static/underscore-1.3.1.js b/docs/_static/underscore-1.3.1.js
deleted file mode 100644
index 208d4cd8..00000000
--- a/docs/_static/underscore-1.3.1.js
+++ /dev/null
@@ -1,999 +0,0 @@
-//     Underscore.js 1.3.1
-//     (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
-//     Underscore is freely distributable under the MIT license.
-//     Portions of Underscore are inspired or borrowed from Prototype,
-//     Oliver Steele's Functional, and John Resig's Micro-Templating.
-//     For all details and documentation:
-//     http://documentcloud.github.com/underscore
-
-(function() {
-
-  // Baseline setup
-  // --------------
-
-  // Establish the root object, `window` in the browser, or `global` on the server.
-  var root = this;
-
-  // Save the previous value of the `_` variable.
-  var previousUnderscore = root._;
-
-  // Establish the object that gets returned to break out of a loop iteration.
-  var breaker = {};
-
-  // Save bytes in the minified (but not gzipped) version:
-  var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
-
-  // Create quick reference variables for speed access to core prototypes.
-  var slice            = ArrayProto.slice,
-      unshift          = ArrayProto.unshift,
-      toString         = ObjProto.toString,
-      hasOwnProperty   = ObjProto.hasOwnProperty;
-
-  // All **ECMAScript 5** native function implementations that we hope to use
-  // are declared here.
-  var
-    nativeForEach      = ArrayProto.forEach,
-    nativeMap          = ArrayProto.map,
-    nativeReduce       = ArrayProto.reduce,
-    nativeReduceRight  = ArrayProto.reduceRight,
-    nativeFilter       = ArrayProto.filter,
-    nativeEvery        = ArrayProto.every,
-    nativeSome         = ArrayProto.some,
-    nativeIndexOf      = ArrayProto.indexOf,
-    nativeLastIndexOf  = ArrayProto.lastIndexOf,
-    nativeIsArray      = Array.isArray,
-    nativeKeys         = Object.keys,
-    nativeBind         = FuncProto.bind;
-
-  // Create a safe reference to the Underscore object for use below.
-  var _ = function(obj) { return new wrapper(obj); };
-
-  // Export the Underscore object for **Node.js**, with
-  // backwards-compatibility for the old `require()` API. If we're in
-  // the browser, add `_` as a global object via a string identifier,
-  // for Closure Compiler "advanced" mode.
-  if (typeof exports !== 'undefined') {
-    if (typeof module !== 'undefined' && module.exports) {
-      exports = module.exports = _;
-    }
-    exports._ = _;
-  } else {
-    root['_'] = _;
-  }
-
-  // Current version.
-  _.VERSION = '1.3.1';
-
-  // Collection Functions
-  // --------------------
-
-  // The cornerstone, an `each` implementation, aka `forEach`.
-  // Handles objects with the built-in `forEach`, arrays, and raw objects.
-  // Delegates to **ECMAScript 5**'s native `forEach` if available.
-  var each = _.each = _.forEach = function(obj, iterator, context) {
-    if (obj == null) return;
-    if (nativeForEach && obj.forEach === nativeForEach) {
-      obj.forEach(iterator, context);
-    } else if (obj.length === +obj.length) {
-      for (var i = 0, l = obj.length; i < l; i++) {
-        if (i in obj && iterator.call(context, obj[i], i, obj) === breaker) return;
-      }
-    } else {
-      for (var key in obj) {
-        if (_.has(obj, key)) {
-          if (iterator.call(context, obj[key], key, obj) === breaker) return;
-        }
-      }
-    }
-  };
-
-  // Return the results of applying the iterator to each element.
-  // Delegates to **ECMAScript 5**'s native `map` if available.
-  _.map = _.collect = function(obj, iterator, context) {
-    var results = [];
-    if (obj == null) return results;
-    if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
-    each(obj, function(value, index, list) {
-      results[results.length] = iterator.call(context, value, index, list);
-    });
-    if (obj.length === +obj.length) results.length = obj.length;
-    return results;
-  };
-
-  // **Reduce** builds up a single result from a list of values, aka `inject`,
-  // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
-  _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
-    var initial = arguments.length > 2;
-    if (obj == null) obj = [];
-    if (nativeReduce && obj.reduce === nativeReduce) {
-      if (context) iterator = _.bind(iterator, context);
-      return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
-    }
-    each(obj, function(value, index, list) {
-      if (!initial) {
-        memo = value;
-        initial = true;
-      } else {
-        memo = iterator.call(context, memo, value, index, list);
-      }
-    });
-    if (!initial) throw new TypeError('Reduce of empty array with no initial value');
-    return memo;
-  };
-
-  // The right-associative version of reduce, also known as `foldr`.
-  // Delegates to **ECMAScript 5**'s native `reduceRight` if available.
-  _.reduceRight = _.foldr = function(obj, iterator, memo, context) {
-    var initial = arguments.length > 2;
-    if (obj == null) obj = [];
-    if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
-      if (context) iterator = _.bind(iterator, context);
-      return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
-    }
-    var reversed = _.toArray(obj).reverse();
-    if (context && !initial) iterator = _.bind(iterator, context);
-    return initial ? _.reduce(reversed, iterator, memo, context) : _.reduce(reversed, iterator);
-  };
-
-  // Return the first value which passes a truth test. Aliased as `detect`.
-  _.find = _.detect = function(obj, iterator, context) {
-    var result;
-    any(obj, function(value, index, list) {
-      if (iterator.call(context, value, index, list)) {
-        result = value;
-        return true;
-      }
-    });
-    return result;
-  };
-
-  // Return all the elements that pass a truth test.
-  // Delegates to **ECMAScript 5**'s native `filter` if available.
-  // Aliased as `select`.
-  _.filter = _.select = function(obj, iterator, context) {
-    var results = [];
-    if (obj == null) return results;
-    if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context);
-    each(obj, function(value, index, list) {
-      if (iterator.call(context, value, index, list)) results[results.length] = value;
-    });
-    return results;
-  };
-
-  // Return all the elements for which a truth test fails.
-  _.reject = function(obj, iterator, context) {
-    var results = [];
-    if (obj == null) return results;
-    each(obj, function(value, index, list) {
-      if (!iterator.call(context, value, index, list)) results[results.length] = value;
-    });
-    return results;
-  };
-
-  // Determine whether all of the elements match a truth test.
-  // Delegates to **ECMAScript 5**'s native `every` if available.
-  // Aliased as `all`.
-  _.every = _.all = function(obj, iterator, context) {
-    var result = true;
-    if (obj == null) return result;
-    if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context);
-    each(obj, function(value, index, list) {
-      if (!(result = result && iterator.call(context, value, index, list))) return breaker;
-    });
-    return result;
-  };
-
-  // Determine if at least one element in the object matches a truth test.
-  // Delegates to **ECMAScript 5**'s native `some` if available.
-  // Aliased as `any`.
-  var any = _.some = _.any = function(obj, iterator, context) {
-    iterator || (iterator = _.identity);
-    var result = false;
-    if (obj == null) return result;
-    if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
-    each(obj, function(value, index, list) {
-      if (result || (result = iterator.call(context, value, index, list))) return breaker;
-    });
-    return !!result;
-  };
-
-  // Determine if a given value is included in the array or object using `===`.
-  // Aliased as `contains`.
-  _.include = _.contains = function(obj, target) {
-    var found = false;
-    if (obj == null) return found;
-    if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
-    found = any(obj, function(value) {
-      return value === target;
-    });
-    return found;
-  };
-
-  // Invoke a method (with arguments) on every item in a collection.
-  _.invoke = function(obj, method) {
-    var args = slice.call(arguments, 2);
-    return _.map(obj, function(value) {
-      return (_.isFunction(method) ? method || value : value[method]).apply(value, args);
-    });
-  };
-
-  // Convenience version of a common use case of `map`: fetching a property.
-  _.pluck = function(obj, key) {
-    return _.map(obj, function(value){ return value[key]; });
-  };
-
-  // Return the maximum element or (element-based computation).
-  _.max = function(obj, iterator, context) {
-    if (!iterator && _.isArray(obj)) return Math.max.apply(Math, obj);
-    if (!iterator && _.isEmpty(obj)) return -Infinity;
-    var result = {computed : -Infinity};
-    each(obj, function(value, index, list) {
-      var computed = iterator ? iterator.call(context, value, index, list) : value;
-      computed >= result.computed && (result = {value : value, computed : computed});
-    });
-    return result.value;
-  };
-
-  // Return the minimum element (or element-based computation).
-  _.min = function(obj, iterator, context) {
-    if (!iterator && _.isArray(obj)) return Math.min.apply(Math, obj);
-    if (!iterator && _.isEmpty(obj)) return Infinity;
-    var result = {computed : Infinity};
-    each(obj, function(value, index, list) {
-      var computed = iterator ? iterator.call(context, value, index, list) : value;
-      computed < result.computed && (result = {value : value, computed : computed});
-    });
-    return result.value;
-  };
-
-  // Shuffle an array.
-  _.shuffle = function(obj) {
-    var shuffled = [], rand;
-    each(obj, function(value, index, list) {
-      if (index == 0) {
-        shuffled[0] = value;
-      } else {
-        rand = Math.floor(Math.random() * (index + 1));
-        shuffled[index] = shuffled[rand];
-        shuffled[rand] = value;
-      }
-    });
-    return shuffled;
-  };
-
-  // Sort the object's values by a criterion produced by an iterator.
-  _.sortBy = function(obj, iterator, context) {
-    return _.pluck(_.map(obj, function(value, index, list) {
-      return {
-        value : value,
-        criteria : iterator.call(context, value, index, list)
-      };
-    }).sort(function(left, right) {
-      var a = left.criteria, b = right.criteria;
-      return a < b ? -1 : a > b ? 1 : 0;
-    }), 'value');
-  };
-
-  // Groups the object's values by a criterion. Pass either a string attribute
-  // to group by, or a function that returns the criterion.
-  _.groupBy = function(obj, val) {
-    var result = {};
-    var iterator = _.isFunction(val) ? val : function(obj) { return obj[val]; };
-    each(obj, function(value, index) {
-      var key = iterator(value, index);
-      (result[key] || (result[key] = [])).push(value);
-    });
-    return result;
-  };
-
-  // Use a comparator function to figure out at what index an object should
-  // be inserted so as to maintain order. Uses binary search.
-  _.sortedIndex = function(array, obj, iterator) {
-    iterator || (iterator = _.identity);
-    var low = 0, high = array.length;
-    while (low < high) {
-      var mid = (low + high) >> 1;
-      iterator(array[mid]) < iterator(obj) ? low = mid + 1 : high = mid;
-    }
-    return low;
-  };
-
-  // Safely convert anything iterable into a real, live array.
-  _.toArray = function(iterable) {
-    if (!iterable)                return [];
-    if (iterable.toArray)         return iterable.toArray();
-    if (_.isArray(iterable))      return slice.call(iterable);
-    if (_.isArguments(iterable))  return slice.call(iterable);
-    return _.values(iterable);
-  };
-
-  // Return the number of elements in an object.
-  _.size = function(obj) {
-    return _.toArray(obj).length;
-  };
-
-  // Array Functions
-  // ---------------
-
-  // Get the first element of an array. Passing **n** will return the first N
-  // values in the array. Aliased as `head`. The **guard** check allows it to work
-  // with `_.map`.
-  _.first = _.head = function(array, n, guard) {
-    return (n != null) && !guard ? slice.call(array, 0, n) : array[0];
-  };
-
-  // Returns everything but the last entry of the array. Especcialy useful on
-  // the arguments object. Passing **n** will return all the values in
-  // the array, excluding the last N. The **guard** check allows it to work with
-  // `_.map`.
-  _.initial = function(array, n, guard) {
-    return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n));
-  };
-
-  // Get the last element of an array. Passing **n** will return the last N
-  // values in the array. The **guard** check allows it to work with `_.map`.
-  _.last = function(array, n, guard) {
-    if ((n != null) && !guard) {
-      return slice.call(array, Math.max(array.length - n, 0));
-    } else {
-      return array[array.length - 1];
-    }
-  };
-
-  // Returns everything but the first entry of the array. Aliased as `tail`.
-  // Especially useful on the arguments object. Passing an **index** will return
-  // the rest of the values in the array from that index onward. The **guard**
-  // check allows it to work with `_.map`.
-  _.rest = _.tail = function(array, index, guard) {
-    return slice.call(array, (index == null) || guard ? 1 : index);
-  };
-
-  // Trim out all falsy values from an array.
-  _.compact = function(array) {
-    return _.filter(array, function(value){ return !!value; });
-  };
-
-  // Return a completely flattened version of an array.
-  _.flatten = function(array, shallow) {
-    return _.reduce(array, function(memo, value) {
-      if (_.isArray(value)) return memo.concat(shallow ? value : _.flatten(value));
-      memo[memo.length] = value;
-      return memo;
-    }, []);
-  };
-
-  // Return a version of the array that does not contain the specified value(s).
-  _.without = function(array) {
-    return _.difference(array, slice.call(arguments, 1));
-  };
-
-  // Produce a duplicate-free version of the array. If the array has already
-  // been sorted, you have the option of using a faster algorithm.
-  // Aliased as `unique`.
-  _.uniq = _.unique = function(array, isSorted, iterator) {
-    var initial = iterator ? _.map(array, iterator) : array;
-    var result = [];
-    _.reduce(initial, function(memo, el, i) {
-      if (0 == i || (isSorted === true ? _.last(memo) != el : !_.include(memo, el))) {
-        memo[memo.length] = el;
-        result[result.length] = array[i];
-      }
-      return memo;
-    }, []);
-    return result;
-  };
-
-  // Produce an array that contains the union: each distinct element from all of
-  // the passed-in arrays.
-  _.union = function() {
-    return _.uniq(_.flatten(arguments, true));
-  };
-
-  // Produce an array that contains every item shared between all the
-  // passed-in arrays. (Aliased as "intersect" for back-compat.)
-  _.intersection = _.intersect = function(array) {
-    var rest = slice.call(arguments, 1);
-    return _.filter(_.uniq(array), function(item) {
-      return _.every(rest, function(other) {
-        return _.indexOf(other, item) >= 0;
-      });
-    });
-  };
-
-  // Take the difference between one array and a number of other arrays.
-  // Only the elements present in just the first array will remain.
-  _.difference = function(array) {
-    var rest = _.flatten(slice.call(arguments, 1));
-    return _.filter(array, function(value){ return !_.include(rest, value); });
-  };
-
-  // Zip together multiple lists into a single array -- elements that share
-  // an index go together.
-  _.zip = function() {
-    var args = slice.call(arguments);
-    var length = _.max(_.pluck(args, 'length'));
-    var results = new Array(length);
-    for (var i = 0; i < length; i++) results[i] = _.pluck(args, "" + i);
-    return results;
-  };
-
-  // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**),
-  // we need this function. Return the position of the first occurrence of an
-  // item in an array, or -1 if the item is not included in the array.
-  // Delegates to **ECMAScript 5**'s native `indexOf` if available.
-  // If the array is large and already in sort order, pass `true`
-  // for **isSorted** to use binary search.
-  _.indexOf = function(array, item, isSorted) {
-    if (array == null) return -1;
-    var i, l;
-    if (isSorted) {
-      i = _.sortedIndex(array, item);
-      return array[i] === item ? i : -1;
-    }
-    if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item);
-    for (i = 0, l = array.length; i < l; i++) if (i in array && array[i] === item) return i;
-    return -1;
-  };
-
-  // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.
-  _.lastIndexOf = function(array, item) {
-    if (array == null) return -1;
-    if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) return array.lastIndexOf(item);
-    var i = array.length;
-    while (i--) if (i in array && array[i] === item) return i;
-    return -1;
-  };
-
-  // Generate an integer Array containing an arithmetic progression. A port of
-  // the native Python `range()` function. See
-  // [the Python documentation](http://docs.python.org/library/functions.html#range).
-  _.range = function(start, stop, step) {
-    if (arguments.length <= 1) {
-      stop = start || 0;
-      start = 0;
-    }
-    step = arguments[2] || 1;
-
-    var len = Math.max(Math.ceil((stop - start) / step), 0);
-    var idx = 0;
-    var range = new Array(len);
-
-    while(idx < len) {
-      range[idx++] = start;
-      start += step;
-    }
-
-    return range;
-  };
-
-  // Function (ahem) Functions
-  // ------------------
-
-  // Reusable constructor function for prototype setting.
-  var ctor = function(){};
-
-  // Create a function bound to a given object (assigning `this`, and arguments,
-  // optionally). Binding with arguments is also known as `curry`.
-  // Delegates to **ECMAScript 5**'s native `Function.bind` if available.
-  // We check for `func.bind` first, to fail fast when `func` is undefined.
-  _.bind = function bind(func, context) {
-    var bound, args;
-    if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
-    if (!_.isFunction(func)) throw new TypeError;
-    args = slice.call(arguments, 2);
-    return bound = function() {
-      if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
-      ctor.prototype = func.prototype;
-      var self = new ctor;
-      var result = func.apply(self, args.concat(slice.call(arguments)));
-      if (Object(result) === result) return result;
-      return self;
-    };
-  };
-
-  // Bind all of an object's methods to that object. Useful for ensuring that
-  // all callbacks defined on an object belong to it.
-  _.bindAll = function(obj) {
-    var funcs = slice.call(arguments, 1);
-    if (funcs.length == 0) funcs = _.functions(obj);
-    each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
-    return obj;
-  };
-
-  // Memoize an expensive function by storing its results.
-  _.memoize = function(func, hasher) {
-    var memo = {};
-    hasher || (hasher = _.identity);
-    return function() {
-      var key = hasher.apply(this, arguments);
-      return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));
-    };
-  };
-
-  // Delays a function for the given number of milliseconds, and then calls
-  // it with the arguments supplied.
-  _.delay = function(func, wait) {
-    var args = slice.call(arguments, 2);
-    return setTimeout(function(){ return func.apply(func, args); }, wait);
-  };
-
-  // Defers a function, scheduling it to run after the current call stack has
-  // cleared.
-  _.defer = function(func) {
-    return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
-  };
-
-  // Returns a function, that, when invoked, will only be triggered at most once
-  // during a given window of time.
-  _.throttle = function(func, wait) {
-    var context, args, timeout, throttling, more;
-    var whenDone = _.debounce(function(){ more = throttling = false; }, wait);
-    return function() {
-      context = this; args = arguments;
-      var later = function() {
-        timeout = null;
-        if (more) func.apply(context, args);
-        whenDone();
-      };
-      if (!timeout) timeout = setTimeout(later, wait);
-      if (throttling) {
-        more = true;
-      } else {
-        func.apply(context, args);
-      }
-      whenDone();
-      throttling = true;
-    };
-  };
-
-  // Returns a function, that, as long as it continues to be invoked, will not
-  // be triggered. The function will be called after it stops being called for
-  // N milliseconds.
-  _.debounce = function(func, wait) {
-    var timeout;
-    return function() {
-      var context = this, args = arguments;
-      var later = function() {
-        timeout = null;
-        func.apply(context, args);
-      };
-      clearTimeout(timeout);
-      timeout = setTimeout(later, wait);
-    };
-  };
-
-  // Returns a function that will be executed at most one time, no matter how
-  // often you call it. Useful for lazy initialization.
-  _.once = function(func) {
-    var ran = false, memo;
-    return function() {
-      if (ran) return memo;
-      ran = true;
-      return memo = func.apply(this, arguments);
-    };
-  };
-
-  // Returns the first function passed as an argument to the second,
-  // allowing you to adjust arguments, run code before and after, and
-  // conditionally execute the original function.
-  _.wrap = function(func, wrapper) {
-    return function() {
-      var args = [func].concat(slice.call(arguments, 0));
-      return wrapper.apply(this, args);
-    };
-  };
-
-  // Returns a function that is the composition of a list of functions, each
-  // consuming the return value of the function that follows.
-  _.compose = function() {
-    var funcs = arguments;
-    return function() {
-      var args = arguments;
-      for (var i = funcs.length - 1; i >= 0; i--) {
-        args = [funcs[i].apply(this, args)];
-      }
-      return args[0];
-    };
-  };
-
-  // Returns a function that will only be executed after being called N times.
-  _.after = function(times, func) {
-    if (times <= 0) return func();
-    return function() {
-      if (--times < 1) { return func.apply(this, arguments); }
-    };
-  };
-
-  // Object Functions
-  // ----------------
-
-  // Retrieve the names of an object's properties.
-  // Delegates to **ECMAScript 5**'s native `Object.keys`
-  _.keys = nativeKeys || function(obj) {
-    if (obj !== Object(obj)) throw new TypeError('Invalid object');
-    var keys = [];
-    for (var key in obj) if (_.has(obj, key)) keys[keys.length] = key;
-    return keys;
-  };
-
-  // Retrieve the values of an object's properties.
-  _.values = function(obj) {
-    return _.map(obj, _.identity);
-  };
-
-  // Return a sorted list of the function names available on the object.
-  // Aliased as `methods`
-  _.functions = _.methods = function(obj) {
-    var names = [];
-    for (var key in obj) {
-      if (_.isFunction(obj[key])) names.push(key);
-    }
-    return names.sort();
-  };
-
-  // Extend a given object with all the properties in passed-in object(s).
-  _.extend = function(obj) {
-    each(slice.call(arguments, 1), function(source) {
-      for (var prop in source) {
-        obj[prop] = source[prop];
-      }
-    });
-    return obj;
-  };
-
-  // Fill in a given object with default properties.
-  _.defaults = function(obj) {
-    each(slice.call(arguments, 1), function(source) {
-      for (var prop in source) {
-        if (obj[prop] == null) obj[prop] = source[prop];
-      }
-    });
-    return obj;
-  };
-
-  // Create a (shallow-cloned) duplicate of an object.
-  _.clone = function(obj) {
-    if (!_.isObject(obj)) return obj;
-    return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
-  };
-
-  // Invokes interceptor with the obj, and then returns obj.
-  // The primary purpose of this method is to "tap into" a method chain, in
-  // order to perform operations on intermediate results within the chain.
-  _.tap = function(obj, interceptor) {
-    interceptor(obj);
-    return obj;
-  };
-
-  // Internal recursive comparison function.
-  function eq(a, b, stack) {
-    // Identical objects are equal. `0 === -0`, but they aren't identical.
-    // See the Harmony `egal` proposal: http://wiki.ecmascript.org/doku.php?id=harmony:egal.
-    if (a === b) return a !== 0 || 1 / a == 1 / b;
-    // A strict comparison is necessary because `null == undefined`.
-    if (a == null || b == null) return a === b;
-    // Unwrap any wrapped objects.
-    if (a._chain) a = a._wrapped;
-    if (b._chain) b = b._wrapped;
-    // Invoke a custom `isEqual` method if one is provided.
-    if (a.isEqual && _.isFunction(a.isEqual)) return a.isEqual(b);
-    if (b.isEqual && _.isFunction(b.isEqual)) return b.isEqual(a);
-    // Compare `[[Class]]` names.
-    var className = toString.call(a);
-    if (className != toString.call(b)) return false;
-    switch (className) {
-      // Strings, numbers, dates, and booleans are compared by value.
-      case '[object String]':
-        // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
-        // equivalent to `new String("5")`.
-        return a == String(b);
-      case '[object Number]':
-        // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for
-        // other numeric values.
-        return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);
-      case '[object Date]':
-      case '[object Boolean]':
-        // Coerce dates and booleans to numeric primitive values. Dates are compared by their
-        // millisecond representations. Note that invalid dates with millisecond representations
-        // of `NaN` are not equivalent.
-        return +a == +b;
-      // RegExps are compared by their source patterns and flags.
-      case '[object RegExp]':
-        return a.source == b.source &&
-               a.global == b.global &&
-               a.multiline == b.multiline &&
-               a.ignoreCase == b.ignoreCase;
-    }
-    if (typeof a != 'object' || typeof b != 'object') return false;
-    // Assume equality for cyclic structures. The algorithm for detecting cyclic
-    // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
-    var length = stack.length;
-    while (length--) {
-      // Linear search. Performance is inversely proportional to the number of
-      // unique nested structures.
-      if (stack[length] == a) return true;
-    }
-    // Add the first object to the stack of traversed objects.
-    stack.push(a);
-    var size = 0, result = true;
-    // Recursively compare objects and arrays.
-    if (className == '[object Array]') {
-      // Compare array lengths to determine if a deep comparison is necessary.
-      size = a.length;
-      result = size == b.length;
-      if (result) {
-        // Deep compare the contents, ignoring non-numeric properties.
-        while (size--) {
-          // Ensure commutative equality for sparse arrays.
-          if (!(result = size in a == size in b && eq(a[size], b[size], stack))) break;
-        }
-      }
-    } else {
-      // Objects with different constructors are not equivalent.
-      if ('constructor' in a != 'constructor' in b || a.constructor != b.constructor) return false;
-      // Deep compare objects.
-      for (var key in a) {
-        if (_.has(a, key)) {
-          // Count the expected number of properties.
-          size++;
-          // Deep compare each member.
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diff --git a/docs/_static/underscore.js b/docs/_static/underscore.js
deleted file mode 100644
index 5b55f32b..00000000
--- a/docs/_static/underscore.js
+++ /dev/null
@@ -1,31 +0,0 @@
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hei:[2,6,7,10,11,15],them:[1,7,9],theorem:7,therebi:11,therefor:15,thermal:11,thermaldistribut:11,thesi:15,theta:11,thi:[1,2,3,5,6,7,8,9,10,11,13,14,15],thin:[10,13],thing:1,thinmultipol:10,thinoctupol:10,thinquadrupol:10,thinsextupol:10,thinskewquadrupol:10,third:15,those:11,three:15,threshold:14,through:[1,2,3,5,8,10,14,15],thrust:6,thrust_interfac:0,thu:[7,8,15],tilt:15,time:[2,5,7,8,9,10,11,14,15],timeit:2,times_list:7,timestep:15,tit:15,to_sort:6,todo:5,toler:15,too:7,topic:13,total:15,toward:11,tpart:15,tps4:15,traceback:5,track:[1,3,5,7,8,10,11,12,13,14,15],track_al:3,track_horizont:3,track_no_transverse_shrink:15,track_numpi:15,track_transverse_shrink:15,track_vert:3,track_with_dispers:15,track_without_dispers:15,tracker:[0,11,13,16],trans_map:15,transfer:[5,15],transfer_funct:3,transferfunct:3,transit:[8,15],transport:15,transvers:[1,3,7,8,11,12,13,14,15],transverse_damp:0,transverse_efield_map:0,transverse_linear_match:11,transverse_spacecharg:0,transverse_track:0,transversedamp:3,transversegaussianspacecharg:14,transversemap:[13,15],transversesegmentmap:15,transversespacecharg:14,travers:13,trivial:15,truncat:15,tsalli:11,tsignatur:15,tthe:15,tto:15,tune:[8,11,13,15],tupl:[6,15],turn:[3,7,8,13,15],tweak:15,twiss:[2,8,11,15],two:[2,3,6,7,9,11,13,14,15],type:[1,3,5,6,7,9,11,14,15],typic:[2,3],u_ap:1,ultra:13,ultrarelativist:7,unavail:9,uncorrel:11,undefin:6,under:1,understood:13,undoc:[2,15],uniform2d:11,uniform:11,uniform_bin:[7,11],uniform_charg:[7,11],uniformbinslic:[8,11],uniformchargeslic:11,uniformli:11,unit:[7,8,11,13,14,15],univers:7,unknowncontextmanagererror:5,unless:6,until:[1,10,11,15],updat:[1,5,7,8,11,15],update_active_dict:5,update_slic:11,upon:15,upper_bound:6,use:[2,3,5,7,9,11,13,14,15],use_cython:8,used:[5,7,9,11,13,14,15],useful:[5,11],user:[2,5,7,9,15],uses:[7,9,15],using:[2,5,7,8,9,10,11,15],usual:[1,7,11,14,15],util:[0,6],v_2:13,v_aper:1,v_rf:8,vacuum:14,valid:[7,11,15],valu:[2,3,5,6,7,8,9,11,13,15],valueerror:[7,11],variabl:15,variat:6,variou:15,vector:[6,15],vectoris:[11,14],veloc:15,verbos:8,verbose_regener:11,veri:[5,7,11,15],verlet:15,version:[5,6,14,15],vertic:[1,3,7,8,11,13,15],via:[5,6,7,11,14,15],visual:7,vladimirski:11,vol:15,volt:14,voltag:[8,13,15],voltage_list:15,volum:11,wai:[7,13,15],wake:0,wake_column:7,wake_compon:7,wake_fil:7,wake_file_column:7,wake_funct:7,wake_kick:0,wake_sourc:7,wake_t:7,wakefield:[7,11],wakekick:7,wakesourc:7,waket:7,wall:7,want:[7,11,14],warn:5,waterbag:11,waterbagdistribut:11,wave:13,weak:[3,5,11,12,13,15],weight:7,well:[7,8,9,14,15],were:15,wfun:14,what:[5,7],when:[7,9,11,14,15],where:[1,5,6,7,11,15],whether:[1,5,7,11,15],which:[1,2,5,6,7,8,9,11,13,14,15],whole:[2,13,14,15],widebandfeedback:0,width:11,wise:[13,14,15],within:[2,7,11,15],without:9,wofz:[5,14],work:[3,6],would:[13,15],wrap:[6,8,15],wrap_z:8,wrapper:[0,5,11,14],write:9,write_buffer_everi:9,written:9,wrt:13,x_aper:1,x_gpu:6,x_high:1,x_initi:15,x_low:1,xin:14,xmax:[2,3,11],xmin:[2,11],y_aper:1,y_high:1,y_low:1,yes:7,yet:15,yield:[8,15],yin:14,ymax:11,ymin:11,yokoya:7,yokoya_factor:7,yokoya_x1:7,yokoya_x2:7,yokoya_y1:7,yokoya_y2:7,you:[5,14,15],your:15,z_beamfram:11,z_bin:11,z_center:11,z_cut:[7,11],z_cut_head:11,z_cut_tail:11,z_high:1,z_left:15,z_low:1,z_right:15,z_sample_point:11,z_sampling_point:11,zero:[5,7,9,10,15],zero_cross:2,zeroth:11,ztaylor:10},titles:["PyHEADTAIL package","PyHEADTAIL.aperture package","PyHEADTAIL.cobra_functions package","PyHEADTAIL.feedback package","PyHEADTAIL.field_maps package","PyHEADTAIL.general package","PyHEADTAIL.gpu package","PyHEADTAIL.impedances package","PyHEADTAIL.machines package","PyHEADTAIL.monitors package","PyHEADTAIL.multipoles package","PyHEADTAIL.particles package","PyHEADTAIL.radiation package","PyHEADTAIL.rfq package","PyHEADTAIL.spacecharge package","PyHEADTAIL.trackers package","Welcome to PyHEADTAIL\u2019s API description!"],titleterms:{apertur:1,aperture_cython:1,api:16,c_sin_co:2,cobra_funct:2,contextmanag:5,curve_tool:2,decor:5,descript:16,detun:15,element:5,feedback:3,field_map:4,gener:[5,11],gpu:6,gpu_util:6,gpu_wrap:6,imped:7,indic:16,interp_sin_co:2,libintegr:15,libtpsa:15,longitudinal_track:15,machin:8,modul:[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15],monitor:9,multipol:10,oldinit:6,packag:[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15],particl:[6,11],pdf_integrators_2d:2,pmath:5,printer:5,pyheadtail:[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16],pypic:6,pypic_factori:14,pypic_spacecharg:14,radiat:12,rf_bucket:15,rfbucket_match:11,rfq:13,simple_long_track:15,slice:[6,11],spacecharg:14,stat:2,submodul:[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15],subpackag:0,synchrotron:8,tabl:16,thrust_interfac:6,tracker:15,transverse_damp:3,transverse_efield_map:4,transverse_spacecharg:14,transverse_track:15,util:5,wake:7,wake_kick:7,welcom:16,widebandfeedback:3,wrapper:[6,15]}})
\ No newline at end of file
diff --git a/docsrc/Makefile b/docsrc/Makefile
deleted file mode 100644
index 0499ffb3..00000000
--- a/docsrc/Makefile
+++ /dev/null
@@ -1,20 +0,0 @@
-# Minimal makefile for Sphinx documentation
-#
-
-# You can set these variables from the command line, and also
-# from the environment for the first two.
-SPHINXOPTS    ?=
-SPHINXBUILD   ?= sphinx-build
-SOURCEDIR     = .
-BUILDDIR      = ./build
-
-# Put it first so that "make" without argument is like "make help".
-help:
-	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
-
-.PHONY: help Makefile
-
-# Catch-all target: route all unknown targets to Sphinx using the new
-# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
-%: Makefile
-	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
diff --git a/docsrc/PyHEADTAIL.aperture.rst b/docsrc/PyHEADTAIL.aperture.rst
deleted file mode 100644
index ee4d18bc..00000000
--- a/docsrc/PyHEADTAIL.aperture.rst
+++ /dev/null
@@ -1,32 +0,0 @@
-PyHEADTAIL.aperture package
-===========================
-
-.. automodule:: PyHEADTAIL.aperture
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.aperture.aperture module
------------------------------------
-
-.. automodule:: PyHEADTAIL.aperture.aperture
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.aperture.aperture\_cython module
--------------------------------------------
-
-.. automodule:: PyHEADTAIL.aperture.aperture_cython
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
diff --git a/docsrc/PyHEADTAIL.cobra_functions.rst b/docsrc/PyHEADTAIL.cobra_functions.rst
deleted file mode 100644
index 6162351e..00000000
--- a/docsrc/PyHEADTAIL.cobra_functions.rst
+++ /dev/null
@@ -1,65 +0,0 @@
-PyHEADTAIL.cobra\_functions package
-===================================
-
-.. automodule:: PyHEADTAIL.cobra_functions
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.cobra\_functions.c\_sin\_cos module
-----------------------------------------------
-
-.. automodule:: PyHEADTAIL.cobra_functions.c_sin_cos
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.cobra\_functions.curve\_tools module
------------------------------------------------
-
-.. automodule:: PyHEADTAIL.cobra_functions.curve_tools
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.cobra\_functions.interp\_sin\_cos module
----------------------------------------------------
-
-.. automodule:: PyHEADTAIL.cobra_functions.interp_sin_cos
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.cobra\_functions.pdf\_integrators\_2d module
--------------------------------------------------------
-
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.cobra\_functions.stats module
-----------------------------------------
-
-.. automodule:: PyHEADTAIL.cobra_functions.stats
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
diff --git a/docsrc/PyHEADTAIL.feedback.rst b/docsrc/PyHEADTAIL.feedback.rst
deleted file mode 100644
index 08e8726d..00000000
--- a/docsrc/PyHEADTAIL.feedback.rst
+++ /dev/null
@@ -1,33 +0,0 @@
-PyHEADTAIL.feedback package
-===========================
-
-.. automodule:: PyHEADTAIL.feedback
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.feedback.transverse\_damper module
----------------------------------------------
-
-.. automodule:: PyHEADTAIL.feedback.transverse_damper
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.feedback.widebandfeedback module
--------------------------------------------
-
-.. automodule:: PyHEADTAIL.feedback.widebandfeedback
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
diff --git a/docsrc/PyHEADTAIL.field_maps.rst b/docsrc/PyHEADTAIL.field_maps.rst
deleted file mode 100644
index d1c5d10e..00000000
--- a/docsrc/PyHEADTAIL.field_maps.rst
+++ /dev/null
@@ -1,33 +0,0 @@
-PyHEADTAIL.field\_maps package
-==============================
-
-.. automodule:: PyHEADTAIL.field_maps
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.field\_maps.Transverse\_Efield\_map module
------------------------------------------------------
-
-.. automodule:: PyHEADTAIL.field_maps.Transverse_Efield_map
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.field\_maps.field\_map module
-----------------------------------------
-
-.. automodule:: PyHEADTAIL.field_maps.field_map
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
diff --git a/docsrc/PyHEADTAIL.general.rst b/docsrc/PyHEADTAIL.general.rst
deleted file mode 100644
index 11fefdcd..00000000
--- a/docsrc/PyHEADTAIL.general.rst
+++ /dev/null
@@ -1,77 +0,0 @@
-PyHEADTAIL.general package
-==========================
-
-.. automodule:: PyHEADTAIL.general
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.general.contextmanager module
-----------------------------------------
-
-.. automodule:: PyHEADTAIL.general.contextmanager
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.general.decorators module
-------------------------------------
-
-.. automodule:: PyHEADTAIL.general.decorators
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.general.element module
----------------------------------
-
-.. automodule:: PyHEADTAIL.general.element
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.general.pmath module
--------------------------------
-
-.. automodule:: PyHEADTAIL.general.pmath
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.general.printers module
-----------------------------------
-
-.. automodule:: PyHEADTAIL.general.printers
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.general.utils module
--------------------------------
-
-.. automodule:: PyHEADTAIL.general.utils
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
diff --git a/docsrc/PyHEADTAIL.gpu.rst b/docsrc/PyHEADTAIL.gpu.rst
deleted file mode 100644
index 20356759..00000000
--- a/docsrc/PyHEADTAIL.gpu.rst
+++ /dev/null
@@ -1,91 +0,0 @@
-PyHEADTAIL.gpu package
-======================
-
-.. automodule:: PyHEADTAIL.gpu
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.gpu.gpu\_utils module
---------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.gpu_utils
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.gpu.gpu\_wrap module
--------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.gpu_wrap
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.gpu.oldinit module
------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.oldinit
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.gpu.particles module
--------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.particles
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.gpu.pypic module
----------------------------
-
-.. automodule:: PyHEADTAIL.gpu.pypic
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.gpu.slicing module
------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.slicing
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.gpu.thrust\_interface module
----------------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.thrust_interface
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance::
-
-PyHEADTAIL.gpu.wrapper module
------------------------------
-
-.. automodule:: PyHEADTAIL.gpu.wrapper
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docsrc/PyHEADTAIL.impedances.rst b/docsrc/PyHEADTAIL.impedances.rst
deleted file mode 100644
index fe36a010..00000000
--- a/docsrc/PyHEADTAIL.impedances.rst
+++ /dev/null
@@ -1,29 +0,0 @@
-PyHEADTAIL.impedances package
-=============================
-
-.. automodule:: PyHEADTAIL.impedances
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.impedances.wake\_kicks module
-----------------------------------------
-
-.. automodule:: PyHEADTAIL.impedances.wake_kicks
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-PyHEADTAIL.impedances.wakes module
-----------------------------------
-
-.. automodule:: PyHEADTAIL.impedances.wakes
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
diff --git a/docsrc/PyHEADTAIL.machines.rst b/docsrc/PyHEADTAIL.machines.rst
deleted file mode 100644
index 0dcadb95..00000000
--- a/docsrc/PyHEADTAIL.machines.rst
+++ /dev/null
@@ -1,21 +0,0 @@
-PyHEADTAIL.machines package
-===========================
-
-.. automodule:: PyHEADTAIL.machines
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.machines.synchrotron module
---------------------------------------
-
-.. automodule:: PyHEADTAIL.machines.synchrotron
-   :members:
-   :private-members: __init__
-   :special-members: __init__
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docsrc/PyHEADTAIL.monitors.rst b/docsrc/PyHEADTAIL.monitors.rst
deleted file mode 100644
index d9e07075..00000000
--- a/docsrc/PyHEADTAIL.monitors.rst
+++ /dev/null
@@ -1,21 +0,0 @@
-PyHEADTAIL.monitors package
-===========================
-
-.. automodule:: PyHEADTAIL.monitors
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.monitors.monitors module
------------------------------------
-
-.. automodule:: PyHEADTAIL.monitors.monitors
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docsrc/PyHEADTAIL.multipoles.rst b/docsrc/PyHEADTAIL.multipoles.rst
deleted file mode 100644
index a4bc81a5..00000000
--- a/docsrc/PyHEADTAIL.multipoles.rst
+++ /dev/null
@@ -1,21 +0,0 @@
-PyHEADTAIL.multipoles package
-=============================
-
-.. automodule:: PyHEADTAIL.multipoles
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.multipoles.multipoles module
----------------------------------------
-
-.. automodule:: PyHEADTAIL.multipoles.multipoles
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docsrc/PyHEADTAIL.particles.rst b/docsrc/PyHEADTAIL.particles.rst
deleted file mode 100644
index 62f2eb04..00000000
--- a/docsrc/PyHEADTAIL.particles.rst
+++ /dev/null
@@ -1,51 +0,0 @@
-PyHEADTAIL.particles package
-============================
-
-.. automodule:: PyHEADTAIL.particles
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.particles.generators module
---------------------------------------
-
-.. automodule:: PyHEADTAIL.particles.generators
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.particles.particles module
--------------------------------------
-
-.. automodule:: PyHEADTAIL.particles.particles
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.particles.rfbucket\_matching module
-----------------------------------------------
-
-.. automodule:: PyHEADTAIL.particles.rfbucket_matching
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.particles.slicing module
------------------------------------
-
-.. automodule:: PyHEADTAIL.particles.slicing
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docsrc/PyHEADTAIL.radiation.rst b/docsrc/PyHEADTAIL.radiation.rst
deleted file mode 100644
index 9d3b0544..00000000
--- a/docsrc/PyHEADTAIL.radiation.rst
+++ /dev/null
@@ -1,21 +0,0 @@
-PyHEADTAIL.radiation package
-============================
-
-.. automodule:: PyHEADTAIL.radiation
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.radiation.radiation module
--------------------------------------
-
-.. automodule:: PyHEADTAIL.radiation.radiation
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docsrc/PyHEADTAIL.rfq.rst b/docsrc/PyHEADTAIL.rfq.rst
deleted file mode 100644
index abba4686..00000000
--- a/docsrc/PyHEADTAIL.rfq.rst
+++ /dev/null
@@ -1,21 +0,0 @@
-PyHEADTAIL.rfq package
-======================
-
-.. automodule:: PyHEADTAIL.rfq
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.rfq.rfq module
--------------------------
-
-.. automodule:: PyHEADTAIL.rfq.rfq
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
diff --git a/docsrc/PyHEADTAIL.rst b/docsrc/PyHEADTAIL.rst
deleted file mode 100644
index 77fdc9fd..00000000
--- a/docsrc/PyHEADTAIL.rst
+++ /dev/null
@@ -1,28 +0,0 @@
-PyHEADTAIL package
-==================
-
-.. automodule:: PyHEADTAIL
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Subpackages
------------
-
-.. toctree::
-
-   PyHEADTAIL.aperture
-   PyHEADTAIL.cobra_functions
-   PyHEADTAIL.feedback
-   PyHEADTAIL.field_maps
-   PyHEADTAIL.general
-   PyHEADTAIL.gpu
-   PyHEADTAIL.impedances
-   PyHEADTAIL.machines
-   PyHEADTAIL.monitors
-   PyHEADTAIL.multipoles
-   PyHEADTAIL.particles
-   PyHEADTAIL.radiation
-   PyHEADTAIL.rfq
-   PyHEADTAIL.spacecharge
-   PyHEADTAIL.trackers
diff --git a/docsrc/PyHEADTAIL.spacecharge.rst b/docsrc/PyHEADTAIL.spacecharge.rst
deleted file mode 100644
index 4f7eac60..00000000
--- a/docsrc/PyHEADTAIL.spacecharge.rst
+++ /dev/null
@@ -1,50 +0,0 @@
-PyHEADTAIL.spacecharge package
-==============================
-
-.. automodule:: PyHEADTAIL.spacecharge
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.spacecharge.pypic\_factory module
---------------------------------------------
-
-.. automodule:: PyHEADTAIL.spacecharge.pypic_factory
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.spacecharge.pypic\_spacecharge module
-------------------------------------------------
-
-.. automodule:: PyHEADTAIL.spacecharge.pypic_spacecharge
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.spacecharge.spacecharge module
------------------------------------------
-
-.. automodule:: PyHEADTAIL.spacecharge.spacecharge
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.spacecharge.transverse\_spacecharge module
------------------------------------------------------
-
-.. automodule:: PyHEADTAIL.spacecharge.transverse_spacecharge
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
diff --git a/docsrc/PyHEADTAIL.trackers.rst b/docsrc/PyHEADTAIL.trackers.rst
deleted file mode 100644
index 8bc01240..00000000
--- a/docsrc/PyHEADTAIL.trackers.rst
+++ /dev/null
@@ -1,90 +0,0 @@
-PyHEADTAIL.trackers package
-===========================
-
-.. automodule:: PyHEADTAIL.trackers
-   :members:
-   :undoc-members:
-   :show-inheritance:
-
-Submodules
-----------
-
-PyHEADTAIL.trackers.detuners module
------------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.detuners
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.trackers.libTPSA module
-----------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.libTPSA
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-
-PyHEADTAIL.trackers.libintegrators module
------------------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.libintegrators
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.trackers.longitudinal\_tracking module
--------------------------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.longitudinal_tracking
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.trackers.rf\_bucket module
--------------------------------------
-
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.trackers.simple\_long\_tracking module
--------------------------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.simple_long_tracking
-   :members:
-   :private-members:
-   :special-members:
-..   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.trackers.transverse\_tracking module
------------------------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.transverse_tracking
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
-
-PyHEADTAIL.trackers.wrapper module
-----------------------------------
-
-.. automodule:: PyHEADTAIL.trackers.wrapper
-   :members:
-   :private-members:
-   :special-members:
-   :undoc-members:
-..   :show-inheritance:
diff --git a/docsrc/conf.py b/docsrc/conf.py
deleted file mode 100644
index be02a428..00000000
--- a/docsrc/conf.py
+++ /dev/null
@@ -1,72 +0,0 @@
-# Configuration file for the Sphinx documentation builder.
-#
-# This file only contains a selection of the most common options. For a full
-# list see the documentation:
-# https://www.sphinx-doc.org/en/master/usage/configuration.html
-
-# -- Path setup --------------------------------------------------------------
-
-# If extensions (or modules to document with autodoc) are in another directory,
-# add these directories to sys.path here. If the directory is relative to the
-# documentation root, use os.path.abspath to make it absolute, like shown here.
-#
-# import os
-# import sys
-# sys.path.insert(0, '/home/giadarol/Desktop/PyFRIENDS_python3/PyHEADTAIL/PyHEADTAIL')
-
-
-# -- Project information -----------------------------------------------------
-
-project = 'PyHEADTAIL'
-copyright = '2019, Author'
-author = 'Author'
-
-
-# -- General configuration ---------------------------------------------------
-
-# Add any Sphinx extension module names here, as strings. They can be
-# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
-# ones.
-extensions = [
-    'sphinx.ext.autodoc',
-    'sphinx.ext.napoleon',
-    'sphinx.ext.coverage'
-    #'sphinx.ext.viewcode',
-    #'sphinx.ext.todo',
-]
-
-# Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
-
-# The language for content autogenerated by Sphinx. Refer to documentation
-# for a list of supported languages.
-#
-# This is also used if you do content translation via gettext catalogs.
-# Usually you set "language" from the command line for these cases.
-language = 'en'
-
-# List of patterns, relative to source directory, that match files and
-# directories to ignore when looking for source files.
-# This pattern also affects html_static_path and html_extra_path.
-exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
-
-
-# -- Options for HTML output -------------------------------------------------
-
-# The theme to use for HTML and HTML Help pages.  See the documentation for
-# a list of builtin themes.
-#
-html_theme = 'nature'
-
-# Add any paths that contain custom static files (such as style sheets) here,
-# relative to this directory. They are copied after the builtin static files,
-# so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
-
-
-# -- Extension configuration -------------------------------------------------
-
-# -- Options for todo extension ----------------------------------------------
-
-# If true, `todo` and `todoList` produce output, else they produce nothing.
-todo_include_todos = True
diff --git a/docsrc/index.rst b/docsrc/index.rst
deleted file mode 100644
index fd3c6203..00000000
--- a/docsrc/index.rst
+++ /dev/null
@@ -1,21 +0,0 @@
-.. PyHEADTAIL documentation master file, created by
-   sphinx-quickstart on Thu Dec  5 15:11:20 2019.
-   You can adapt this file completely to your liking, but it should at least
-   contain the root `toctree` directive.
-
-Welcome to PyHEADTAIL's API description!
-======================================
-
-.. toctree::
-   :maxdepth: 3 
-   :caption: Contents:
-
-   PyHEADTAIL
-
-
-Indices and tables
-==================
-
-* :ref:`genindex`
-* :ref:`modindex`
-* :ref:`search`
diff --git a/docsrc/make.bat b/docsrc/make.bat
deleted file mode 100644
index 2119f510..00000000
--- a/docsrc/make.bat
+++ /dev/null
@@ -1,35 +0,0 @@
-@ECHO OFF
-
-pushd %~dp0
-
-REM Command file for Sphinx documentation
-
-if "%SPHINXBUILD%" == "" (
-	set SPHINXBUILD=sphinx-build
-)
-set SOURCEDIR=.
-set BUILDDIR=_build
-
-if "%1" == "" goto help
-
-%SPHINXBUILD% >NUL 2>NUL
-if errorlevel 9009 (
-	echo.
-	echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
-	echo.installed, then set the SPHINXBUILD environment variable to point
-	echo.to the full path of the 'sphinx-build' executable. Alternatively you
-	echo.may add the Sphinx directory to PATH.
-	echo.
-	echo.If you don't have Sphinx installed, grab it from
-	echo.http://sphinx-doc.org/
-	exit /b 1
-)
-
-%SPHINXBUILD% -M %1 %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
-goto end
-
-:help
-%SPHINXBUILD% -M help %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
-
-:end
-popd
diff --git a/PyHEADTAIL/testing/script-tests/CLIC_DR.py b/examples/CLIC_DR.py
similarity index 100%
rename from PyHEADTAIL/testing/script-tests/CLIC_DR.py
rename to examples/CLIC_DR.py
diff --git a/PyHEADTAIL/testing/script-tests/LHC.py b/examples/LHC.py
similarity index 100%
rename from PyHEADTAIL/testing/script-tests/LHC.py
rename to examples/LHC.py
diff --git a/PyHEADTAIL/testing/script-tests/lhc_2015_80cm_optics.pkl b/examples/lhc_2015_80cm_optics.pkl
similarity index 100%
rename from PyHEADTAIL/testing/script-tests/lhc_2015_80cm_optics.pkl
rename to examples/lhc_2015_80cm_optics.pkl
diff --git a/PyHEADTAIL/testing/script-tests/test_radiation_damping_time_and_equilibrum_values.py b/examples/radiation_damping_time_and_equilibrum_values.py
similarity index 100%
rename from PyHEADTAIL/testing/script-tests/test_radiation_damping_time_and_equilibrum_values.py
rename to examples/radiation_damping_time_and_equilibrum_values.py
diff --git a/PyHEADTAIL/testing/script-tests/test_radiation_energy_loss.py b/examples/radiation_energy_loss.py
similarity index 100%
rename from PyHEADTAIL/testing/script-tests/test_radiation_energy_loss.py
rename to examples/radiation_energy_loss.py
diff --git a/PyHEADTAIL/testing/script-tests/test_radiation_with_non_linear_bucket.py b/examples/radiation_with_non_linear_bucket.py
similarity index 99%
rename from PyHEADTAIL/testing/script-tests/test_radiation_with_non_linear_bucket.py
rename to examples/radiation_with_non_linear_bucket.py
index 9d8359b6..cdfa551e 100644
--- a/PyHEADTAIL/testing/script-tests/test_radiation_with_non_linear_bucket.py
+++ b/examples/radiation_with_non_linear_bucket.py
@@ -92,7 +92,7 @@
     epsn_z[i]   = bunch.epsn_z()
     mean_dp[i]  = bunch.mean_dp()
 
-    if not (i+1)%10:
+    if not (i+1)%100:
         ax1.cla()
         ax2.cla()
         ax3.cla()
diff --git a/PyHEADTAIL/testing/script-tests/test_synchrotron_LHC.py b/examples/synchrotron_LHC.py
similarity index 100%
rename from PyHEADTAIL/testing/script-tests/test_synchrotron_LHC.py
rename to examples/synchrotron_LHC.py
diff --git a/PyHEADTAIL/testing/script-tests/test_synchrotron_electrons_CLIC_DR.py b/examples/synchrotron_electrons_CLIC_DR.py
similarity index 100%
rename from PyHEADTAIL/testing/script-tests/test_synchrotron_electrons_CLIC_DR.py
rename to examples/synchrotron_electrons_CLIC_DR.py
diff --git a/PyHEADTAIL/testing/script-tests/test_synchrotron.py b/examples/synchrotron_general.py
similarity index 100%
rename from PyHEADTAIL/testing/script-tests/test_synchrotron.py
rename to examples/synchrotron_general.py
diff --git a/fix-conda-gcc.sh b/fix-conda-gcc.sh
deleted file mode 100644
index a8b19053..00000000
--- a/fix-conda-gcc.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/bash
-
-# to fix compiler incompatibilities when trying to build under conda - manifests as somethinbg like
-# '''
-# *.o: file not recognized: file format not recognized
-# collect2: error: ld returned 1 exit status
-# error: command 'gcc' failed with exit status 1
-# '''
-
-conda install gxx_linux-64
-conda create -n cc_env gcc_linux-64
-conda activate cc_env
diff --git a/generate_python3 b/generate_python3
deleted file mode 100755
index 5003d7d3..00000000
--- a/generate_python3
+++ /dev/null
@@ -1,9 +0,0 @@
-mkdir ../python3
-rm -rf ../python3/PyHEADTAIL
-cp -r ../PyHEADTAIL ../python3/PyHEADTAIL
-rm ../python3/PyHEADTAIL/*.so
-
-2to3 --output-dir=../python3/PyHEADTAIL -W -n ../PyHEADTAIL > 2to3.out
-
-#rm -rf ../python3/PyHEADTAIL/.git
-
diff --git a/prepush.py b/prepush.py
deleted file mode 100755
index 9a9abf29..00000000
--- a/prepush.py
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/usr/bin/python
-# pre-commit hook
-# ensure that unit tests are ok if you push to develop or master
-# @author Stefan Hegglin, Adrian Oeftiger
-
-import subprocess as sbp
-import sys
-
-def run():
-    '''Run all tests for PyHEADTAIL here. Return success status.'''
-    return test_all() == 0
-
-def test_all():
-    # get the git root directory
-    git_dir = sbp.check_output(
-        ["git", "rev-parse", "--show-toplevel"]).rstrip().decode("utf-8")
-    # construct the testsuite filename
-    fn_testsuite = git_dir + '/PyHEADTAIL/testing/unittests/testsuite.py'
-
-    # # don't test code which isnt part of the commit
-    # sbp.call(["git", "stash", "-q", "--keep-index"])
-    # try:
-
-    # run the testsuite (exit status 0: all fine)
-    res = sbp.call(["python", fn_testsuite])
-
-    #finally:
-    #    # pop the stash
-    #    sbp.call(["git" , "stash", "pop", "-q"])
-
-    return res
-
-if __name__ == '__main__':
-    # get the current branch name, strip trailing whitespaces using rstrip()
-    branch = sbp.check_output(
-        ["git", "rev-parse", "--abbrev-ref", "HEAD"]).rstrip()
-
-    if branch == 'master' or branch == 'develop':
-        print(('\n' + 'X' * 66))
-        print ('You are trying to push to the master or develop branch.')
-        print ('Checking unit tests first...')
-        print(('X' * 66 + '\n'))
-
-        res = test_all()
-        if res == 0:
-            print(('\n' + 'X' * 66))
-            print ('Passed unit tests, proceeding.')
-            print(('X' * 66 + '\n'))
-        else:
-            print(('\n' + 'X' * 66))
-            print ('Failed unit tests, fix them before comitting. Aborting.')
-            print(('X' * 66 + '\n'))
-        sys.exit(res)
-    else:
-        # if not on develop or master: continue
-        sys.exit(0)
diff --git a/release.py b/release.py
deleted file mode 100755
index 66cdec40..00000000
--- a/release.py
+++ /dev/null
@@ -1,442 +0,0 @@
-#!/usr/bin/python
-'''
-Algorithm to release PyHEADTAIL versions. The structure follows the development
-workflow, cf. the PyHEADTAIL wiki:
-https://github.com/PyCOMPLETE/PyHEADTAIL/wiki/Our-Development-Workflow
-
-Requires git, hub (the github tool, https://hub.github.com/) and importlib
-(included in python >=2.7) to be installed.
-
-Conforms with PEP440 (especially the versioning needs to follow this).
-
-@copyright: CERN
-@date: 26.01.2017
-@author: Adrian Oeftiger
-'''
-
-import argparse
-import importlib # available from PyPI for Python <2.7
-import os, subprocess
-
-# python2/3 compatibility for raw_input/input:
-if hasattr(__builtins__, 'raw_input'):
-    input = raw_input
-
-# CONFIG
-version_location = 'PyHEADTAIL._version' # in python relative module notation
-# (e.g. PyHEADTAIL._version for PyHEADTAIL/_version.py)
-test_script_location = 'prepush' # in python relative module notation
-release_branch_prefix = 'release/v' # prepended name of release branch
-github_user = 'PyCOMPLETE'
-github_repo = 'PyHEADTAIL'
-
-
-parser = argparse.ArgumentParser(
-    description=(
-        'Release a new version of PyHEADTAIL in 2 steps:\n'
-        '1. prepare new release from develop branch '
-        '(requires release type argument "part")\n'
-        '2. publish new release (requires to be on release branch already)\n'
-        'optionally: release PyHEADTAIL to PyPI '
-        '(requires to be on master branch)'),
-    formatter_class=argparse.RawTextHelpFormatter
-)
-parser.add_argument(
-    'part', type=str,
-    choices=['major', 'minor', 'patch'],
-    help="release type\n"
-         "(use 'minor' for new features "
-         "and 'patch' for bugfixes, "
-         "'major' is not usually used ;-)",
-)
-
-def bumpversion(version, part):
-    '''Advance the three component version with format X.Y.Z by one in the
-    given part. Return the bumped version string.
-    Arguments:
-        - version: string, format 'major.minor.patch' (e.g. '1.12.2')
-        - part: string, one of ['major', 'minor', 'patch']
-    '''
-    # exactly 3 components in version:
-    parts = version.split('.')
-    # only integers stored:
-    assert all(p.isdigit() for p in parts)
-    major, minor, patch = list(map(int, parts))
-    if part == 'major':
-        version = '{0}.0.0'.format(major + 1)
-    elif part == 'minor':
-        version = '{0}.{1}.0'.format(major, minor + 1)
-    elif part == 'patch':
-        version = '{0}.{1}.{2}'.format(major, minor, patch + 1)
-    else:
-        raise ValueError('The given part "' + part + '" is not in '
-                         "['major', 'minor', 'patch'].")
-    return version
-
-def get_version(version_location):
-    '''Retrieve the version from version_location file.'''
-    return importlib.import_module(version_location).__version__
-
-def do_tag_and_version_match(version):
-    '''Return whether the current git tag and the given version match.
-    NB: returns True if and only if the current commit is tagged with
-    the version tag.
-    '''
-    current_commit = subprocess.check_output(
-        ['git', 'describe', '--dirty']).rstrip().decode("utf-8")
-    return current_commit == 'v{}'.format(version)
-
-def which_part_increases(last_version, new_version):
-    '''Return a string which version part is increased. Raise an error
-    if new_version is not a valid direct successor to last_version.
-    Args:
-        - last_version, new_version: string, format 'major.minor.patch'
-          (e.g. '1.12.2')
-    Return:
-        - part: string, one of ['major', 'minor', 'patch']
-    '''
-    # exactly 3 components in version:
-    last_parts = last_version.split('.')
-    new_parts = new_version.split('.')
-    # only integers stored:
-    assert all(p.isdigit() for p in last_parts + new_parts)
-    lmajor, lminor, lpatch = list(map(int, last_parts))
-    nmajor, nminor, npatch = list(map(int, new_parts))
-    if lmajor + 1 == nmajor and nminor == 0 and npatch == 0:
-        return 'major'
-    elif lmajor == nmajor and lminor + 1 == nminor and npatch == 0:
-        return 'minor'
-    elif lmajor == nmajor and lminor == nminor and lpatch + 1 == npatch:
-        return 'patch'
-    else:
-        raise ValueError(
-            'new_version is not a direct successor of last_version.')
-
-def validate_release_version(version_location):
-    '''Validate the new release version new_version by comparing the
-    release branch name to the bumped previous version last_version,
-    which is read from version_location.
-    Raise an error if new_version is not a valid direct successor to
-    last_version. Return new_version.
-    '''
-    last_version = get_version(version_location)
-    release_version = current_branch()[len(release_branch_prefix):]
-
-    # make sure release_version incrementally succeeds last_version
-    which_part_increases(last_version, release_version)
-
-    return release_version
-
-
-def establish_new_version(version_location):
-    '''Write the new release version to version_location.
-    Check that this agrees with the bumped previous version.
-    Return the new version.
-    Args:
-        - version_location: string, relative python module notation
-        (e.g. PyHEADTAIL._version for PyHEADTAIL/_version.py)
-    '''
-    release_version = validate_release_version(version_location)
-
-    vpath = version_location.replace('.', '/') + '.py'
-    with open(vpath, 'wt') as vfile:
-        vfile.write("__version__ = '" + release_version + "'\n")
-    assert subprocess.call(["git", "add", vpath]) == 0
-    assert subprocess.call(
-        ["git", "commit", "-m", "release-script: bumping version file."]) == 0
-    print(('*** The new release version has been bumped: PyHEADTAIL v'
-           + release_version))
-    return release_version
-
-def ensure_hub_is_installed():
-    '''Check whether hub (from github) is installed.
-    If not, throw an error with an installation note.
-    '''
-    try:
-        assert subprocess.call(["hub", "--version"]) == 0
-    except (OSError, AssertionError):
-        raise OSError(
-            'The github command-line tool is needed for '
-            'opening the pull request for the release. '
-            'Please install hub from https://hub.github.com/ !'
-        )
-
-def ensure_gothub_is_installed():
-    '''Check whether gothub (to draft github releases) is installed.
-    If not, throw an error with an installation note.
-    '''
-    try:
-        assert subprocess.call(["gothub", "--version"]) == 0
-    except (OSError, AssertionError):
-        raise OSError(
-            'The gothub command-line tool is needed for '
-            'drafting releases on github. '
-            'Please install gothub from '
-            'https://github.com/itchio/gothub !'
-        )
-
-def check_or_setup_github_OAuth_token():
-    '''Check if github OAuth security token is set as an environment
-    variable. If not ask for it and give instruction how to get it.
-    The token is needed for gothub.
-    '''
-    if os.environ.get('GITHUB_TOKEN', None):
-        print ('\n*** github OAuth security token found in $GITHUB_TOKEN.\n')
-        return
-    print (
-        '\n*** No github OAuth security token found in $GITHUB_TOKEN.'
-        ' You need the token for gothub to draft the release on github!'
-        ' (Get the security token via github\'s website, cf.'
-        '\n*** https://help.github.com/articles/creating-a-personal-access-'
-        'token-for-the-command-line/ )\n')
-    token = eval(input('--> Please enter your github OAuth security token:\n'))
-    os.environ['GITHUB_TOKEN'] = token
-
-def ensure_gitpulls_is_installed():
-    '''Check whether the gem git-pulls (to get github pull requests) is
-    installed.
-    If not, throw an error with an installation note.
-    '''
-    try:
-        assert subprocess.call(["git", "pulls"]) == 0
-    except (OSError, AssertionError):
-        raise OSError(
-            'The gothub command-line tool is needed for '
-            'checking the pull request text from the release. '
-            'Please install git-pulls '
-            'from https://github.com/schacon/git-pulls !'
-        )
-
-def check_release_tools():
-    '''Return whether git-pulls and gothub are installed (needed for
-    drafting the github release from CLI). If not, ask whether user
-    wants to continue and draft the release manually (if this is not
-    the case, raise exception!).
-    If no github OAuth security token is set, ask for it.
-    '''
-    try:
-        ensure_gitpulls_is_installed()
-        ensure_gothub_is_installed()
-        check_or_setup_github_OAuth_token()
-        return True
-    except OSError:
-        answer = ''
-        accept = ['y', 'yes', 'n', 'no']
-        while answer not in accept:
-            answer = input(
-                '!!! You do not have all required tools installed to '
-                'automatically draft a release. Do you want to continue '
-                'and manually draft the release on github afterwards?\n'
-                '[y/N] ').lower()
-            if not answer:
-                answer = 'n'
-        if answer == 'n' or answer == 'no':
-            raise
-        else:
-            return False
-
-def current_branch():
-    '''Return current git branch name.'''
-    # get the current branch name, strip trailing whitespaces using rstrip()
-    return subprocess.check_output(
-        ["git", "rev-parse", "--abbrev-ref", "HEAD"]).rstrip().decode("utf-8")
-
-def open_release_branch(version):
-    '''Create release/vX.Y.Z branch with the given version string.
-    Push the new release branch upstream. Print output from git.
-    '''
-    branch_name = release_branch_prefix + version
-    output = subprocess.check_output(
-        ["git", "checkout", "-b", branch_name]
-    ).rstrip().decode("utf-8")
-    print (output)
-    output = subprocess.check_output(
-        ["git", "push", "--set-upstream", "origin", branch_name]
-    ).rstrip().decode("utf-8")
-    print (output)
-
-def ensure_tests(test_script_location):
-    '''Run test script and return whether they were successful.'''
-    test_script = importlib.import_module(test_script_location)
-    return test_script.run()
-
-def is_worktree_dirty():
-    '''Return True if the current git work tree is dirty, i.e.\ the
-    status whether or not there are uncommitted changes.
-    '''
-    # integer (0: clean, 1: dirty)
-    is_dirty = subprocess.call(['git', 'diff', '--quiet', 'HEAD', '--'])
-    return bool(is_dirty)
-
-def git_status():
-    '''Print git status output.'''
-    output = subprocess.check_output(
-        ['git', 'status', 'HEAD']
-    )
-    print (output)
-
-def get_pullrequest_message(release_version):
-    '''Fetch message from open pull request corresponding to this
-    release_version.
-    '''
-    fetched = subprocess.check_output(['git', 'pulls', 'update'])
-    pr_number = None
-    for line in fetched.split('\n'):
-        if "PyCOMPLETE:release/v{}".format(release_version) in line:
-            pr_number = line.split()[0]
-            break
-    if pr_number is None:
-        raise EnvironmentError(
-            'Could not find open pull request for this release version. '
-            'Did you properly initiate the release process '
-            '(step 1 in ./release.py --help)?')
-    text = subprocess.check_output(['git', 'pulls', 'show', pr_number])
-    output = []
-    for line in text.split('\n')[5:]:
-        if line != '------------':
-            output.append(line)
-        else:
-            break
-    output[0] = output[0][11:] # remove "Title    : "
-    return '\n'.join(output)
-
-
-# DEFINE TWO STEPS FOR RELEASE PROCESS:
-
-def init_release(part):
-    '''Initialise release process.'''
-    if not current_branch() == 'develop' and not (
-            current_branch()[:7] == 'hotfix/' and
-            part == 'patch'):
-        raise EnvironmentError(
-            'Releases can only be initiated from the develop branch! '
-            '(Releasing a patch is allowed from a hotfix/ branch as well.)')
-    if is_worktree_dirty():
-        git_status()
-        raise EnvironmentError('Release process can only be initiated on '
-                               'a clean git repository. You have uncommitted '
-                               'changes in your files, please fix this first.')
-    current_version = get_version(version_location)
-    new_version = bumpversion(current_version, part)
-    open_release_branch(new_version)
-    print ('*** The release process has been successfully initiated.\n'
-           'Opening the pull request into master from the just created '
-           'release branch.\n\n'
-           'You may have to provide your github.com credentials '
-           'to the following hub call.\n\n'
-           'A text editor will open in which title and body of the pull '
-           'request for the new release can be entered in the same '
-           'manner as git commit message.')
-    subprocess.call(["hub", "pull-request"])
-    print ('\n*** Please check that the PyHEADTAIL tests run successfully.')
-    print ('\n*** Initiated the release process. When you are ready to publish '
-           'the release, run this command again.')
-    print ('\n\n*** Do not forget to review the pull request on github.com!')
-
-def finalise_release():
-    '''Finalise release process.'''
-    if is_worktree_dirty():
-        git_status()
-        raise EnvironmentError('Release process can only be initiated on '
-                               'a clean git repository. You have uncommitted '
-                               'changes in your files, please fix this first.')
-    tests_successful = ensure_tests(test_script_location)
-    if not tests_successful:
-        raise EnvironmentError('The PyHEADTAIL tests fail. Please fix '
-                               'the tests first!')
-    print ('*** The PyHEADTAIL tests have successfully terminated.')
-
-    # all tools installed to automatically draft release?
-    draft_release = check_release_tools()
-    if draft_release:
-        new_version = validate_release_version(version_location)
-        message = get_pullrequest_message(new_version)
-
-    # bump version file
-    new_version = establish_new_version(version_location)
-
-    # make sure to push any possible release branch commits
-    assert subprocess.call(["git", "push", "origin"]) == 0
-    # --> might instead be done via git fetch and suggesting to push
-    #     only if there are commits missing upstream
-
-    # merge into master
-    assert subprocess.call(["git", "checkout", "master"]) == 0
-    rbranch = release_branch_prefix + new_version
-    assert subprocess.call(
-        ["git", "merge", "--no-ff", rbranch,
-         "-m", "release-script: Merge branch '" + rbranch + "'"]) == 0
-
-    # tag version on master commit
-    assert subprocess.call(["git", "tag", "-a", "v" + new_version, "-m",
-                            "'PyHEADTAIL v" + new_version + "'"]) == 0
-
-    # push master release upstream
-    assert subprocess.call(
-        ["git", "push", "origin", "master", "--follow-tags"]) == 0
-
-    # merge new master release back into develop
-    assert subprocess.call(["git", "checkout", "develop"]) == 0
-    assert subprocess.call(["git", "merge", "master"]) == 0
-    assert subprocess.call(["git", "push", "origin", "develop"]) == 0
-
-    # delete release branch
-    assert subprocess.call(["git", "branch", "-d", rbranch]) == 0
-    assert subprocess.call(["git", "push", "origin", ":" + rbranch]) == 0
-
-    # publish github release (with message from pull request)
-    if draft_release:
-        release_failed = subprocess.call(
-            ['gothub', 'release', '-u', github_user, '-r', github_repo,
-             '-t', 'v' + new_version,
-             '-n', 'PyHEADTAIL v{}'.format(new_version),
-             '-d', '{}'.format(message),
-             '-c', 'master'])
-        if release_failed:
-            print ('*** Drafting the release via gothub failed. '
-                   'Did you provide the correct github OAuth security '
-                   'token via $GITHUB_TOKEN? '
-                   'You may draft this release manually from the '
-                   'github website.')
-    else:
-        print ('*** Remember to manually draft this release from the '
-               'github website.')
-
-def release_pip():
-    '''Release current version from master branch to PyPI.'''
-    if is_worktree_dirty():
-        git_status()
-        raise EnvironmentError('Release process can only be initiated on '
-                               'a clean git repository. You have uncommitted '
-                               'changes in your files, please fix this first.')
-    if current_branch() != "master":
-        raise EnvironmentError(
-            'PyPI releases can only be initiated from the master branch!')
-    current_version = get_version(version_location)
-    if not do_tag_and_version_match(current_version):
-        raise EnvironmentError(
-            'the current master branch commit needs to be the tagged version '
-            'which matches the version stored in the version file!')
-
-    assert subprocess.call(['python', 'setup.py', 'sdist']) == 0
-    assert subprocess.call(
-        ['twine', 'upload', '-r', 'pypi',
-         'dist/PyHEADTAIL-{}.tar.gz'.format(current_version)]) == 0
-    assert subprocess.call(['rm', '-r', 'dist', 'PyHEADTAIL.egg-info']) == 0
-
-
-# ALGORITHM FOR RELEASE PROCESS:
-if __name__ == '__main__':
-    print(('*** Current working directory:\n' + os.getcwd() + '\n'))
-    ensure_hub_is_installed()
-
-    # are we on a release branch already?
-    if not (current_branch()[:len(release_branch_prefix)] ==
-            release_branch_prefix):
-        if current_branch() == 'master':
-            release_pip()
-        else:
-            args = parser.parse_args()
-            init_release(args.part)
-    else:
-        finalise_release()
diff --git a/release.sh b/release.sh
new file mode 100644
index 00000000..c12c3115
--- /dev/null
+++ b/release.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+set -euo pipefail; IFS=$'\n\t'
+
+NAME=$( python setup.py --name )
+VER=$( python setup.py --version )
+
+echo "========================================================================"
+echo "Tagging $NAME v$VER"
+echo "========================================================================"
+
+git tag -a v$VER
+git push origin v$VER
+
+echo "========================================================================"
+echo "Releasing $NAME v$VER on PyPI"
+echo "========================================================================"
+
+python setup.py sdist
+twine upload dist/*
+rm -r dist/ *.egg-info
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 57aab863..00000000
--- a/requirements.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-certifi==2020.6.20
-cycler==0.10.0
-Cython==0.29.21
-h5py==2.10.0
-kiwisolver==1.2.0
-matplotlib==3.3.1
-numpy==1.19.1
-Pillow==8.2.0
-pyparsing==2.4.7
-python-dateutil==2.8.1
-scipy==1.5.2
-six==1.15.0
diff --git a/setup.py b/setup.py
index dcb4705f..6824c9f9 100755
--- a/setup.py
+++ b/setup.py
@@ -3,24 +3,21 @@
 # thanks to Nick Foti for his cython skeleton, cf.
 # http://nfoti.github.io/a-creative-blog-name/posts/2013/02/07/cleaning-cython-build-files/
 
-import numpy as np
-from PyHEADTAIL._version import __version__
-
 import os, sys, subprocess
-
 from setuptools import setup, Extension, find_packages
+from pathlib import Path
+
+import numpy as np
 
 from Cython.Build import cythonize
 from Cython.Distutils import build_ext
 
-import platform
 
-if platform.system() is 'Darwin':
-    print("Info: since you are running Mac OS, you "
-          "may have to install with the following line:\n\n"
-          "$ CC=gcc-4.9 ./install\n"
-          "(or any equivalent version of gcc)")
-    input('Hit any key to continue...')
+version_file = Path(__file__).parent.absolute().joinpath('PyHEADTAIL/_version.py')
+dd = {}
+with open(version_file, 'r') as fp:
+    exec(fp.read(), dd)
+__version__ = dd['__version__']
 
 args = sys.argv[1:]
 # Make a `cleanall` rule to get rid of intermediate and library files


Test patch:
diff --git a/PyHEADTAIL/testing/development/tracking_model.py b/PyHEADTAIL/testing/development/tracking_model.py
deleted file mode 100644
index d217a0c4..00000000
--- a/PyHEADTAIL/testing/development/tracking_model.py
+++ /dev/null
@@ -1,198 +0,0 @@
-import numpy as np
-from scipy.constants import c
-from abc import ABCMeta, abstractmethod
-
-from PyHEADTAIL.general.utils import ListProxy
-
-
-class KineticElement(object, metaclass=ABCMeta):
-    """Documentation for KineticElement
-
-    """
-
-    def __init__(self, gamma, mass):
-        self.gamma = gamma
-        self.mass = mass
-
-    @property
-    def gamma(self):
-        return self._gamma
-
-    @gamma.setter
-    def gamma(self, value):
-        self._gamma = value
-        self._beta = np.sqrt(1 - self.gamma**-2)
-        self._betagamma = np.sqrt(self.gamma**2 - 1)
-        self._p0 = self.betagamma * self.mass * c
-
-    @property
-    def beta(self):
-        return self._beta
-
-    @beta.setter
-    def beta(self, value):
-        self.gamma = 1. / np.sqrt(1 - value**2)
-
-    @property
-    def betagamma(self):
-        return self._betagamma
-
-    @betagamma.setter
-    def betagamma(self, value):
-        self.gamma = np.sqrt(value**2 + 1)
-
-    @property
-    def p0(self):
-        return self._p0
-
-    @p0.setter
-    def p0(self, value):
-        self.gamma = np.sqrt(1 + (value/(self.mass*c))**2)
-        self.gamma = (1 / (c*self.mass) *
-                      np.sqrt(value**2+self.mass**2*c**2))
-
-
-class TrackingElement(object, metaclass=ABCMeta):
-    """Documentation for TrackingElement
-
-    """
-
-    def __init__(self, args):
-        super(TrackingElement, self).__init__()
-        self.args = args
-
-    @abstractmethod
-    def track(self, arg):
-        pass
-
-
-class Detuner(object, metaclass=ABCMeta):
-    """Documentation for Detuner
-
-    """
-
-    def __init__(self, args):
-        super(Detuner, self).__init__()
-        self.args = args
-
-    @abstractmethod
-    def generate(self, arg):
-        pass
-
-    @abstractmethod
-    def detune(self, beam):
-        pass
-
-
-class Octupoles(Detuner):
-    """Documentation for Octupoles
-
-    """
-    def __init__(self, ap_x, ap_y, ap_xy):
-        super(Octupoles, self).__init__('args')
-        self._ap_x = [ap_x]
-        self._ap_y = [ap_y]
-        self._ap_xy = [ap_xy]
-
-        # self._ap_x = ListProxy(self, "ap_x")
-
-    @property
-    def ap_x(self):
-        return self._ap_x[0]
-
-    @ap_x.setter
-    def ap_x(self, value):
-        self._ap_x[0] = value
-
-    def ap_y():
-        doc = """Doc string"""
-        def fget(self):
-            return self._ap_y[0]
-
-        def fset(self, value):
-            self._ap_y[0] = value
-
-        def fdel(self):
-            del self._ap_y
-        return locals()
-    ap_y = property(**ap_y())
-
-    def generate(self, arg):
-        self.arg = arg
-
-    def detune(self, beam):
-        pass
-
-
-class Segment(object):
-    """Documentation for Segment
-
-    """
-    def __init__(self,
-                 alpha_0, beta_0, alpha_1, beta_1,
-                 dmu, detuner_list, plane, D_0=0, D_1=0):
-        super(Segment, self).__init__()
-        self.alpha_0 = alpha_0
-        self.beta_0 = beta_0
-        self.D_0 = D_0
-        self.alpha_1 = alpha_1
-        self.beta_1 = beta_1
-        self.D_1 = D_1
-        self.dmu = dmu
-        self.detuner_list = detuner_list
-        self.plane = plane
-
-    def build_matrix(self, arg):
-
-        B = [[np.sqrt(1/self.beta_0), 0],
-             [-np.sqrt(self.alpha_0/self.beta_0), np.sqrt(self.beta_0)]]
-        R = [[np.cos(self.dmu), np.sin(self.dmu)],
-             [-np.sin(self.dmu), np.cos(self.dmu)]]
-        B_inv = [[np.sqrt(self.beta_0), 0],
-                 [np.sqrt(self.alpha_1/self.beta_1), np.sqrt(1/self.beta_1)]]
-
-        I = [[1, 0],
-             [0, 1]]
-        S = [[0, 1],
-             [-1, 0]]
-
-        self.M = np.dot(B_inv, np.dot(R, B))
-        self.C = np.dot(B_inv, np.dot(I, B))
-        self.S = np.dot(B_inv, np.dot(S, B))
-
-    def kick(self, beam):
-
-        if self.plane == 'x':
-            beam.x = (
-                (self.C[0, 0]*np.cos(self.dmu) +
-                 self.S[0, 0]*np.sin(self.dmu)) * beam.x +
-                (self.C[0, 1]*np.cos(self.dmu) +
-                 self.S[0, 1]*np.sin(self.dmu)) * beam.xp)
-            beam.xp = (
-                (self.C[1, 0]*np.cos(self.dmu) +
-                 self.S[1, 0]*np.sin(self.dmu)) * beam.x +
-                (self.C[1, 1]*np.cos(self.dmu) +
-                 self.S[1, 1]*np.sin(self.dmu)) * beam.xp)
-
-        if self.plane == 'y':
-            beam.y = (
-                (self.C[0, 0]*np.cos(self.dmu) +
-                 self.S[0, 0]*np.sin(self.dmu)) * beam.y +
-                (self.C[0, 1]*np.cos(self.dmu) +
-                 self.S[0, 1]*np.sin(self.dmu)) * beam.yp)
-            beam.yp = (
-                (self.C[1, 0]*np.cos(self.dmu) +
-                 self.S[1, 0]*np.sin(self.dmu)) * beam.y +
-                (self.C[1, 1]*np.cos(self.dmu) +
-                 self.S[1, 1]*np.sin(self.dmu)) * beam.yp)
-        if self.plane == 'z':
-            beam.z = (
-                (self.C[0, 0]*np.cos(self.dmu) +
-                 self.S[0, 0]*np.sin(self.dmu)) * beam.z +
-                (self.C[0, 1]*np.cos(self.dmu) +
-                 self.S[0, 1]*np.sin(self.dmu)) * beam.dp)
-            beam.dp = (
-                (self.C[1, 0]*np.cos(self.dmu) +
-                 self.S[1, 0]*np.sin(self.dmu)) * beam.z +
-                (self.C[1, 1]*np.cos(self.dmu) +
-                 self.S[1, 1]*np.sin(self.dmu)) * beam.dp)
diff --git a/PyHEADTAIL/testing/unittests/PyCERNmachines/.gitignore b/tests/PyCERNmachines/.gitignore
similarity index 100%
rename from PyHEADTAIL/testing/unittests/PyCERNmachines/.gitignore
rename to tests/PyCERNmachines/.gitignore
diff --git a/PyHEADTAIL/testing/unittests/PyCERNmachines/CERNmachines.py b/tests/PyCERNmachines/CERNmachines.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/PyCERNmachines/CERNmachines.py
rename to tests/PyCERNmachines/CERNmachines.py
diff --git a/PyHEADTAIL/testing/unittests/PyCERNmachines/README.md b/tests/PyCERNmachines/README.md
similarity index 100%
rename from PyHEADTAIL/testing/unittests/PyCERNmachines/README.md
rename to tests/PyCERNmachines/README.md
diff --git a/PyHEADTAIL/testing/unittests/PyCERNmachines/SPS/SPSOctupoles.py b/tests/PyCERNmachines/SPS/SPSOctupoles.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/PyCERNmachines/SPS/SPSOctupoles.py
rename to tests/PyCERNmachines/SPS/SPSOctupoles.py
diff --git a/PyHEADTAIL/testing/unittests/PyCERNmachines/SPS/__init__.py b/tests/PyCERNmachines/SPS/__init__.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/PyCERNmachines/SPS/__init__.py
rename to tests/PyCERNmachines/SPS/__init__.py
diff --git a/PyHEADTAIL/testing/unittests/PyCERNmachines/__init__.py b/tests/PyCERNmachines/__init__.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/PyCERNmachines/__init__.py
rename to tests/PyCERNmachines/__init__.py
diff --git a/PyHEADTAIL/testing/unittests/PyCERNmachines/machines.py b/tests/PyCERNmachines/machines.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/PyCERNmachines/machines.py
rename to tests/PyCERNmachines/machines.py
diff --git a/PyHEADTAIL/testing/unittests/autoruntests/ApertureNLossesTest.py b/tests/autoruntests/ApertureNLossesTest.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/autoruntests/ApertureNLossesTest.py
rename to tests/autoruntests/ApertureNLossesTest.py
diff --git a/PyHEADTAIL/testing/unittests/autoruntests/DetunersTest.py b/tests/autoruntests/DetunersTest.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/autoruntests/DetunersTest.py
rename to tests/autoruntests/DetunersTest.py
diff --git a/PyHEADTAIL/testing/unittests/autoruntests/MonitorTest.py b/tests/autoruntests/MonitorTest.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/autoruntests/MonitorTest.py
rename to tests/autoruntests/MonitorTest.py
diff --git a/PyHEADTAIL/testing/unittests/autoruntests/RFQTest.py b/tests/autoruntests/RFQTest.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/autoruntests/RFQTest.py
rename to tests/autoruntests/RFQTest.py
diff --git a/PyHEADTAIL/testing/unittests/autoruntests/SlicingTest.py b/tests/autoruntests/SlicingTest.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/autoruntests/SlicingTest.py
rename to tests/autoruntests/SlicingTest.py
diff --git a/PyHEADTAIL/testing/unittests/autoruntests/TransverseTrackingTest.py b/tests/autoruntests/TransverseTrackingTest.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/autoruntests/TransverseTrackingTest.py
rename to tests/autoruntests/TransverseTrackingTest.py
diff --git a/PyHEADTAIL/testing/unittests/autoruntests/WakeTest.py b/tests/autoruntests/WakeTest.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/autoruntests/WakeTest.py
rename to tests/autoruntests/WakeTest.py
diff --git a/PyHEADTAIL/testing/unittests/autoruntests/__init__.py b/tests/autoruntests/__init__.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/autoruntests/__init__.py
rename to tests/autoruntests/__init__.py
diff --git a/PyHEADTAIL/testing/unittests/autoruntests/wake_table.dat b/tests/autoruntests/wake_table.dat
similarity index 100%
rename from PyHEADTAIL/testing/unittests/autoruntests/wake_table.dat
rename to tests/autoruntests/wake_table.dat
diff --git a/PyHEADTAIL/testing/unittests/test_aperture.py b/tests/test_aperture.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/test_aperture.py
rename to tests/test_aperture.py
diff --git a/PyHEADTAIL/testing/unittests/test_cobra.py b/tests/test_cobra.py
similarity index 96%
rename from PyHEADTAIL/testing/unittests/test_cobra.py
rename to tests/test_cobra.py
index 3d9bc3f6..929facfe 100644
--- a/PyHEADTAIL/testing/unittests/test_cobra.py
+++ b/tests/test_cobra.py
@@ -46,7 +46,7 @@ def test_consistency_covariance(self):
         """
         v_cobra = cf.cov(self.data1, self.data2)
         v_numpy = np.cov(self.data1, self.data2)[0,1]
-        self.assertAlmostEquals(v_cobra, v_numpy, places=self.tolerance,
+        self.assertAlmostEqual(v_cobra, v_numpy, places=self.tolerance,
                                 msg='cobra cov() yields a different result ' +
                                 'than numpy.cov()')
 
@@ -58,10 +58,10 @@ def test_eta_prime_is_zero(self):
         bunch = self.generate_gaussian6dBunch(1000000, 0, 0, 1, 1, 5, 100)
         eta_prime_x = cf.dispersion(bunch.xp, bunch.dp)
         weak_tol = 2
-        self.assertAlmostEquals(eta_prime_x, 0., places=weak_tol,
+        self.assertAlmostEqual(eta_prime_x, 0., places=weak_tol,
                                 msg='eta_prime_x is not zero but ' + str(eta_prime_x))
         eta_prime_y = cf.dispersion(bunch.yp, bunch.dp)
-        self.assertAlmostEquals(eta_prime_y, 0., places=weak_tol,
+        self.assertAlmostEqual(eta_prime_y, 0., places=weak_tol,
                                 msg='eta_prime_y is not zero but ' + str(eta_prime_y))
 
 
@@ -71,7 +71,7 @@ def test_cov_of_uncorrelated_data_is_zero(self):
         """
         d1 = np.random.normal(100, 2., self.n_samples)
         d2 = np.random.normal(200, 0.2, self.n_samples)
-        self.assertAlmostEquals(cf.cov(d1, d2), 0.0,
+        self.assertAlmostEqual(cf.cov(d1, d2), 0.0,
                                 places=self.tolerance,
                                 msg='cobra cov() of two uncorrelated ' +
                                 'Gaussians != 0')
diff --git a/PyHEADTAIL/testing/unittests/test_detuners.py b/tests/test_detuners.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/test_detuners.py
rename to tests/test_detuners.py
diff --git a/PyHEADTAIL/testing/unittests/test_dispatch.py b/tests/test_dispatch.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/test_dispatch.py
rename to tests/test_dispatch.py
diff --git a/PyHEADTAIL/testing/unittests/test_generators.py b/tests/test_generators.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/test_generators.py
rename to tests/test_generators.py
diff --git a/PyHEADTAIL/testing/unittests/test_gpu_interface.py b/tests/test_gpu_interface.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/test_gpu_interface.py
rename to tests/test_gpu_interface.py
diff --git a/PyHEADTAIL/testing/unittests/test_itest_autorun.py b/tests/test_itest_autorun.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/test_itest_autorun.py
rename to tests/test_itest_autorun.py
diff --git a/PyHEADTAIL/testing/unittests/test_listproxy.py b/tests/test_listproxy.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/test_listproxy.py
rename to tests/test_listproxy.py
diff --git a/PyHEADTAIL/testing/unittests/test_longitudinal_tracking.py b/tests/test_longitudinal_tracking.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/test_longitudinal_tracking.py
rename to tests/test_longitudinal_tracking.py
diff --git a/PyHEADTAIL/testing/unittests/test_monitor.py b/tests/test_monitor.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/test_monitor.py
rename to tests/test_monitor.py
diff --git a/PyHEADTAIL/testing/unittests/test_particles.py b/tests/test_particles.py
similarity index 97%
rename from PyHEADTAIL/testing/unittests/test_particles.py
rename to tests/test_particles.py
index 3c19abe4..1c2a12f9 100644
--- a/PyHEADTAIL/testing/unittests/test_particles.py
+++ b/tests/test_particles.py
@@ -122,7 +122,7 @@ def test_clean_slices(self):
 
     def test_means(self):
         ''' Tests the mean() method of the Particle class '''
-        self.assertAlmostEquals(self.bunch.mean_xp(), np.mean(self.bunch.xp),
+        self.assertAlmostEqual(self.bunch.mean_xp(), np.mean(self.bunch.xp),
                                 places=5, msg='np.mean() and bunch.mean_xp() '
                                 'yield different results')
 
@@ -130,7 +130,7 @@ def test_sigmaz(self):
         '''Test the sigma_z() method of the Particle class
         Only check the first 3 digits because the sample is small (2048)
         '''
-        self.assertAlmostEquals(self.bunch.sigma_z(), np.std(self.bunch.z),
+        self.assertAlmostEqual(self.bunch.sigma_z(), np.std(self.bunch.z),
                                 places=3, msg='np.std() and bunch.sigma_z() '
                                 'yield different results')
 
@@ -164,7 +164,7 @@ def test_effective_emittance_vs_emittance(self):
         emittance for a transverse-only beam.
         '''
         beam_transverse = self.create_transverse_only_bunch()
-        self.assertAlmostEquals(
+        self.assertAlmostEqual(
             beam_transverse.epsn_x(),
             beam_transverse.effective_normalized_emittance_x(),
             places = 5,
@@ -173,7 +173,7 @@ def test_effective_emittance_vs_emittance(self):
             'for a transverse only beam.'
         )
 
-        self.assertAlmostEquals(
+        self.assertAlmostEqual(
             beam_transverse.epsn_y(),
             beam_transverse.effective_normalized_emittance_y(),
             places = 5,
diff --git a/PyHEADTAIL/testing/unittests/test_slicing.py b/tests/test_slicing.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/test_slicing.py
rename to tests/test_slicing.py
diff --git a/PyHEADTAIL/testing/unittests/test_slicing_gpu.py b/tests/test_slicing_gpu.py
similarity index 87%
rename from PyHEADTAIL/testing/unittests/test_slicing_gpu.py
rename to tests/test_slicing_gpu.py
index 9d0c958e..90b2cf59 100644
--- a/PyHEADTAIL/testing/unittests/test_slicing_gpu.py
+++ b/tests/test_slicing_gpu.py
@@ -7,18 +7,26 @@
 
 import unittest
 import numpy as np
+import logging
 from scipy.constants import c, e, m_p
-from pycuda.autoinit import context
-from pycuda import gpuarray
-from pycuda import cumath
-
-import PyHEADTAIL.gpu
-from PyHEADTAIL.particles.particles import Particles
-from PyHEADTAIL.gpu.slicing import MeshSlicer
-from PyHEADTAIL.general.printers import AccumulatorPrinter
-from PyHEADTAIL.trackers.longitudinal_tracking import LinearMap
-from PyHEADTAIL.particles.generators import generate_Gaussian6DTwiss
-from PyPIC.GPU.meshing import UniformMesh1D
+
+try:
+    from pycuda.autoinit import context
+    from pycuda import gpuarray
+    from pycuda import cumath
+except ImportError:
+    has_pycuda = False
+else:
+    has_pycuda = True
+
+if has_pycuda:
+    import PyHEADTAIL.gpu
+    from PyHEADTAIL.particles.particles import Particles
+    from PyHEADTAIL.gpu.slicing import MeshSlicer
+    from PyHEADTAIL.general.printers import AccumulatorPrinter
+    from PyHEADTAIL.trackers.longitudinal_tracking import LinearMap
+    from PyHEADTAIL.particles.generators import generate_Gaussian6DTwiss
+    from PyPIC.GPU.meshing import UniformMesh1D
 
 def check_elements_equal(np_array1d):
     value = np_array1d[0]
@@ -30,6 +38,7 @@ def check_elements_equal(np_array1d):
 
 class TestSlicing(unittest.TestCase):
 
+    @unittest.skipUnless(has_pycuda, 'pycuda not found')
     def setUp(self):
         #beam parameters
         self.intensity = 1.234e9
@@ -52,9 +61,11 @@ def setUp(self):
         self.basic_slicer = MeshSlicer(self.mesh, context)
         self.basic_slice_set = self.basic_slicer.slice(self.bunch)
 
+    @unittest.skipUnless(has_pycuda, 'pycuda not found')
     def tearDown(self):
         pass
 
+    @unittest.skipUnless(has_pycuda, 'pycuda not found')
     def test_long_cuts(self):
         '''Tests whether the z_cuts are initialized correctly'''
         (cut_tail, cut_head) = self.basic_slicer.get_long_cuts(self.bunch)
@@ -73,6 +84,7 @@ def test_long_cuts(self):
     #     self.assertTrue(len(warnings.log) > 0,
     #                     'no warning generated when z_cut head < z_cut tail')
 
+    @unittest.skipUnless(has_pycuda, 'pycuda not found')
     def test_equality(self):
         '''Tests whether two slicers with the same config are equal
         in the sense of the == and != operator (calling __eq__, __ne__)
@@ -86,6 +98,7 @@ def test_equality(self):
                          'comparing two uniform bin slicers with '+
                          'identical config using != returns True')
 
+    @unittest.skipUnless(has_pycuda, 'pycuda not found')
     def test_inequality(self):
         '''Tests whether two slicers with differing meshs are not equal
         in the sense of the == and != operator (calling __eq__, __ne__)
@@ -100,6 +113,7 @@ def test_inequality(self):
                          'comparing two uniform bin slicers with '+
                          'different config using == returns True')
 
+    @unittest.skipUnless(has_pycuda, 'pycuda not found')
     def test_sliceset_macroparticles(self):
         '''Tests whether the sum of all particles per slice
         is equal to the specified number of macroparticles when specifying
@@ -115,6 +129,7 @@ def test_sliceset_macroparticles(self):
         self.assertEqual(self.macroparticlenumber, n_particles,
                          'the SliceSet lost/added some particles')
 
+    @unittest.skipUnless(has_pycuda, 'pycuda not found')
     def test_add_statistics(self):
         """ Tests whether any error gets thrown when calling the statistics
         functions of the slicer. Does not do any specific tests
@@ -154,6 +169,7 @@ def test_add_statistics(self):
     #    self.assertTrue(self.basic_slice_set.slice_positions.size ==
     #                    self.nslices, 'slice_positions has wrong dimension')
 
+    @unittest.skipUnless(has_pycuda, 'pycuda not found')
     def create_mesh(self, nslices=None, z_cuts=None):
         if nslices is None:
             nslices = self.nslices
@@ -164,6 +180,7 @@ def create_mesh(self, nslices=None, z_cuts=None):
                              nslices,
                              mathlib=cumath)
 
+    @unittest.skipUnless(has_pycuda, 'pycuda not found')
     def create_bunch(self, zmin=-1., zmax=1.):
         z = np.linspace(zmin, zmax, num=self.macroparticlenumber)
         y = np.copy(z)
@@ -180,6 +197,7 @@ def create_bunch(self, zmin=-1., zmax=1.):
             self.circumference, self.gamma, coords_n_momenta_dict
         )
 
+    @unittest.skipUnless(has_pycuda, 'pycuda not found')
     def create_bunch_with_params(self,alpha_x, beta_x, disp_x, gamma):
         np.random.seed(0)
         beta_y = beta_x
@@ -218,5 +236,7 @@ def create_bunch_with_params(self,alpha_x, beta_x, disp_x, gamma):
         bunch.x += disp_x * bunch.dp
         bunch.y += disp_y * bunch.dp
         return bunch
+
+
 if __name__ == '__main__':
     unittest.main()
diff --git a/PyHEADTAIL/testing/unittests/test_transverse_tracking.py b/tests/test_transverse_tracking.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/test_transverse_tracking.py
rename to tests/test_transverse_tracking.py
diff --git a/PyHEADTAIL/testing/unittests/testsuite.py b/tests/testsuite.py
similarity index 100%
rename from PyHEADTAIL/testing/unittests/testsuite.py
rename to tests/testsuite.py