- Fixed iBug landmark loading, now without tlms

- added an app for SDM training
- Initial SDM training implementation

- Changed some push_back's back to C++11-style initialization
Reverted minor changes to generateSyndata
- Renamed mergePlaygroundApp to patchConverter (we don't need the old one anymore, but we need one to convert patches)

- extended patchConverter a bit
- progress on sdmTraining: Mean calculation  similar to paper,
MC-sampling
Extended patchConverter with resizing & cmdline-args
Fixed a bug in the output of patchConverter when resizing
sdmTraining can now load several different databases and we can specify which landmarks to learn
SDM Training: - Added interchangeable feature extraction

- Now trains the whole cascade
- Moved the SDM model and fitting to libShapeModels

- added a save() method
- SDM: Descriptor types now saved
removed some dependencies from sdmTraining
- Fixed compilation of SdmTracking

- Adjusted Sdm fitting code for new model training and SIFT features
- Added training error calculation to SDM training

- preparing to move SDM training to separate class
- Added Eigen3 dependency to libshapemodels (20x faster matrix inverse)

- SDM training now in separate class & separate functions