Merge pull request #1 from DerThorsten/master

added ad3 and qpbo
Merge pull request #2 from DerThorsten/master

added mrf
Merge pull request #3 from DerThorsten/master

work in progress for gco and conicbundle
fix gco-patch (use int as value-type - need to be changed in opengm, too) comment TRWS (problems with older CMAKE versions)
Merge pull request #4 from joergkappes/master

fix gco, bug for TRWS and MRF with older CMAKE-Version
merge
Merge pull request #6 from joergkappes/master

merge pullrequest of thorsten
Merge pull request #2 from opengm/master

from opengm master to my fork