MRG: Merge branch 'develop' into metadata_pixeltype

Documentation/SoftwareGuide/Latex/Installation.tex

Documentation/SoftwareGuide/Latex/OrthoRectification.tex

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

Modules/Core/ImageBase/include/otbImageIOBase.h

Modules/IO/IOGDAL/src/otbGDALImageIO.cxx

Modules/IO/ImageIO/include/otbImageFileReader.hxx

Modules/IO/ImageIO/test/CMakeLists.txt

Modules/IO/ImageIO/test/otbImageIOTestDriver.cxx

Modules/IO/ImageIO/test/otbWriteGeomFile.cxx

...nsionalityReductionLearning/include/otbAutoencoderModel.h

...ing/DimensionalityReductionLearning/include/otbPCAModel.h

...vised/include/otbSharkRandomForestsMachineLearningModel.h

...Unsupervised/include/otbSharkKMeansMachineLearningModel.h