Categories for Motions
Add CategoryFormField to the MotionForm
Append missing files
Category Delete View
Motion Identifier
Merge branch 'master' of github.com:OpenSlides/OpenSlides into category
Changed comlex workflow automaticly set the identifier
set identifier
dont set identifier prefix, if it is empty
Merge pull request #563 from ostcar/category

Category
fixed travis
Merge pull request #564 from ostcar/category

fixed travis
Merge branch 'master' into Fileupload_2