clean PR for opengm
FIX sample data load for Windows
FIX other two sample data load for Windows
Remove external libs, apt-get libboost and cython, make -j6
Merge pull request #82 from tesla1060/master

FIX sample data load for Windows
Merge pull request #80 from pystruct/opengm

opengm in travis build
ENH computing final objective in subgradientSSVM and NSlackSSVM.
FIX computation of primal objective in utils, add test.
Add "objective_" function to ssvm base class, refactor.
FIX call logger after the last call to compute the objective function...
FIX objective for rescale_C.
FIX Also fix SubgradientLatentSSVM objective curve.
Fix objective computeation in SubgradientLatentSSVM.
untested changes to use opegm's vectorized api, and reserve space
untested changes (completely untested..did not even run the file)
untested changes (completely untested..did not even run the file)
minor fixes for refactored opengm interface