Merge pull request #3 from opengm/master

from master to my fork
added a maybe fast version to add factors
Merge branch 'master' of github.com:DerThorsten/opengm
minor bugfix in function helper
Merge pull request #4 from opengm/master

from opengm master to my fork
started to remove editable stuff from gm header...DOES NOT COMPILE SO FAR
some unit tests are working, but still withing refactoring
removed unused functions
changed readme
changed readme
added first starting point for *.deb package in main CmakeList
implemented a new storage for factors variables indices
added missing file
added methods to reserve factors variables sice
 work in progress commit for lp-gurobi,only linker problems left
Merge pull request #111 from DerThorsten/master

* removed editable graphical model
* change handling of variable storage for factors of graphical model (speed up code)
* add LP-Gurobi (still alpha version with linking problems)