BUG: ndimage: fix swapped 64-bitness test
MAINT: an easier way to make ranges from slices
pep8ify distribution.py

- mostly missing whitespace after ","
- linebreaks
- indentation
Use more common form of triple-quote strings (pep8 compliant).
ENH: Add callback to slsqp in scipy.optimize
Merge pull request #3120 from matthias-k/slsqp-callback
Merge pull request #3126 from sotte/pep8_distributions

pep8ify stats/distributions.py
ENH: optimize: choose method automatically in minimize

Make usage easier by choosing an appropriate solver.
Merge pull request #3117 from pv/ndimage-label-fix2

BUG: ndimage: fix swapped 64-bitness test
MAINT: split distributions.py into three files
MAINT: remove globals() as suggested by @evr-br
Merge pull request #3133 from pv/minimize-method-auto

ENH: optimize: choose method automatically in minimize
DOC: add 0.13.2 release notes.
MAINT: make ``python setup.py bdist_wheel`` work.
TST: [stats, discrete] tighten cdf-ppf tests
TST: [stats, discrete] tighten cdf-pmf tests
TST: [stats, discrete] remove non-running tests
TST: [stats, discrete] remove sample tests

They are too noisy: only work for decimal=0.
MAINT: deprecate simulated annealing
DOC: release notes