Merge pull request #63 from joergkappes/RC2.1

GCO-Patch bugfix
... Currently 3 Tests fail, I will have a look next ...
hdf5 hotfix
Merge branch 'RC2.1' of git://github.com/opengm/opengm into RC2.1
hdf5 hotfix
added some missing files
Merge pull request #64 from DerThorsten/RC2.1

Rc2.1
Merge pull request #5 from opengm/RC2.1

Rc2.1