WRG: Fixing a bunch of warnings

...eature/Moments/test/otbKMeansAttributesLabelMapFilter.cxx

...ature/SeamCarving/include/otbImageToCarvingPathFilter.txx

Modules/Learning/LearningBase/include/otbSEMClassifier.h

Modules/Learning/LearningBase/include/otbSEMClassifier.txx

Modules/Learning/SVMLearning/include/otbSVMClassifier.h

.../Registration/Stereo/test/otbAdhesionCorrectionFilter.cxx

Modules/Wrappers/QtWidget/src/otbQtApplication.cxx

...tWidget/src/otbWrapperQtWidgetInputImageListParameter.cxx

.../Wrappers/QtWidget/src/otbWrapperQtWidgetIntParameter.cxx

...rappers/QtWidget/src/otbWrapperQtWidgetProgressReport.cxx

.../Wrappers/QtWidget/src/otbWrapperQtWidgetRAMParameter.cxx

...rs/QtWidget/src/otbWrapperQtWidgetStringListParameter.cxx