Changes to LandmarkSources / ImageIO:

- Renamed OrderedLandmarkSource to LandmarkSource
- Removed LandmarkSource::get() from the interface and all derived
classes
- Updated all *LandmarkSources
- Derived NamedLandmarkSource from LandmarkSource
- Removed A LOT more of the 'using' in ImageIO headers
- Reverted a VS2012 fix back to C++11

- Added WITH_MSKINECT_SDK option to some tracking apps
Added a CMake flag WITH_MATLAB_CLASSIFIER and made libClassification independent on Matlab
option MUCT Landmarktype added