Merge pull request #80 from opengm/master

update version
add test for FoE
add FoE
add example how to build FoE
add support for FoE in CommandLineTool
add buildFoE into build tree
Merge branch 'master' of https://github.com/joergkappes/opengm
Merge pull request #324 from joergkappes/master

Add FoE