MRG: Synchronize with branch develop

CMake/FindShark.cmake

Documentation/Cookbook/Scripts/otbGenerateWrappersRstDoc.py

Documentation/Cookbook/rst/recipes/python.rst

...Classification/app/otbClassificationMapRegularization.cxx

...tions/AppClassification/app/otbDSFuzzyModelEstimation.cxx

...cations/AppClassification/app/otbKMeansClassification.cxx

...tions/AppClassification/app/otbMultiImageSamplingRate.cxx

...lications/AppClassification/app/otbOGRLayerClassifier.cxx

...pplications/AppClassification/app/otbSampleExtraction.cxx

...Applications/AppClassification/app/otbSampleSelection.cxx

...ations/AppClassification/app/otbTrainImagesClassifier.cxx

...Applications/AppClassification/app/otbTrainRegression.cxx

...ations/AppClassification/app/otbTrainVectorClassifier.cxx

...pplications/AppClassification/app/otbVectorClassifier.cxx

...tions/AppClassification/app/otbVectorDataDSValidation.cxx

.../Applications/AppClassification/include/otbTrainBoost.txx

...ations/AppClassification/include/otbTrainDecisionTree.txx

...AppClassification/include/otbTrainGradientBoostedTree.txx

...ications/AppClassification/include/otbTrainImagesBase.txx

...es/Applications/AppClassification/include/otbTrainKNN.txx