Merge pull request #149 from DerThorsten/master

updates in  loc, and clang build fixed
Update test_graphcut.cxx
Merge pull request #37 from opengm/master

update from opengm:master
bugfixes for windows - thanks to Javier Montoya
Merge pull request #150 from joergkappes/master

 bugfixes for windows
Merge pull request #15 from opengm/master

from master to my fork