Merge pull request #9 from opengm/master

getting opengm-master updates
Merge pull request #10 from opengm/master

getting opengm-master updates
added missing include of reduced inference to DD subgradient solver caller
Merge pull request #280 from homul/master

Added mised include in dd-subgradient_caller
Merge pull request #70 from opengm/master

update from opengm:master