Travis: add MAC OSX build

* Separate install dependencies instructions in two script files:
     * tools/travis.linux.install.deps.sh
     * tools/travis.osx.install.deps.sh
Travis: fix MAC OS X build

Apple: can't create bundle with a version specified for the dynamic library.
Merge pull request #87 from cchampet/build_MACOSX_Travis

Travis: add MAC OSX build
AudioTransform: support resampling

* Use default interpolation (nothing to set).
* The default interpolation may be not optimized for some audio files:
need to set parameters used to resample (filter_size, phase_shift,
linear_interp, cutoff, etc...) before initialize the SWR context.
Merge pull request #90 from cchampet/dev_resample_audio

AudioTransform: support resampling
Cmake: fix install python binding file

* Can't use file(GLOB ...) function to get a file which doesn't exist
yet.
* Now no need to reconfigure CMake file after a first build to install
the python binding file avtranscoder.py.
App genericProcessor: set process method to longest

Set the method to infinity was dangerous for users...
CMake: fix python version

* Never get python version from DEFINED PYTHONLIBS_VERSION_STRING, even
if CMake 2.8.8.
* Get python version from include path.
* This will fix the python stuff when create packages.
* Use PYTHON_INCLUDE_DIR instead of PYTHON_INCLUDE_DIRS (not defined in all CMake versions...).
Merge pull request #91 from cchampet/fix_cmake_python

CMake: fix python binding
Merge pull request #92 from cchampet/fix_app_genericProcessor

App genericProcessor: set process method to longest
XdCamHd422: fix flags value

A profile is a map: one key for one value.
Mkv profile: fix format name
Avi profile: use const avProfileFormat
Merge pull request #93 from cchampet/fix_existing_profiles

Fix existing profiles