added missing "visit.begin(*this)" to inference algorithms
Changed documentation of python
added constructor to pyFidVector
changed python examples
added some result images for mrf benchmark house model
changed __init__.py of opengm python
added tests
changed pyGm a bit
added a vectorized factor api to gm
deleted unused image from python docsrc
deleted unused graphics folder
- added high speed vectorized factor api to py graphical model
- removed unused function from converter
Merge pull request #31 from DerThorsten/RC2.1

Bugfixes on C++ side, Documentation and examples on Python side