upgrade ruby to ruby1.9.1
Merge branch 'feature/ruby19' into develop
install dependencies (for ext libraries in bundle)
Merge branch 'feature/fix-ruby-dependencies' into develop
update munin
Merge branch 'feature/update-munin' into develop
Goodby DEA v2!
Merge branch 'feature/remove-dea-v2-introduce-v1' into develop