Merge pull request #9 from opengm/master

getting opengm-master updates
Merge pull request #69 from opengm/master

update from master
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
add astar
add astar
change default ordering for Astar
 bugfix decomposition into kfans
Merge branch 'master' of https://github.com/joergkappes/opengm
Merge pull request #281 from joergkappes/master

Updates for DualDecomposition
add option to save files - temporary quick and dirty solution
add example for saving testfiles - not used by default
Merge pull request #282 from joergkappes/master

Write modelfiles  for models used in unittests
Merge pull request #29 from opengm/master

from master to my branch