A big update for Tapkee

- Fixed a few VS 2012 compilations
- Parallel MDS
- Parallel
- Callbacks folder rearrangement
- Other improvements
Fixed compilation
Some improvement for multiclass confidences

- Changed the way confidences are stored (array of sgvectors -> sgmatrix)

- Added a unit test for confidences
Fixed MC machine confidences allocation
removed debug output
made tests quiet
test failed before, using more sensible data now
removed output