got test_structsvm working again (made sure to handle column vectors) CMakelist hacked (include path)... needs fix to work on other machine
system_test runs without errors...
compare unsigned with signed
fix CMakeLists
CMakeLists: add headers
make sure the indices are sorted in the same order as the values
Merge branch 'release_master' into release_learning
Merge remote-tracking branch 'origin/learning' into feature_extraction

Conflicts:
	CMakeLists.txt