added groups for serializer
Merge branch 'feature/api-entities' of git://github.com/sulu-cmf/SuluCategoryBundle into feature/api-entities
added additional check for translations
Merge branch 'develop' of git://github.com/sulu-cmf/SuluCategoryBundle into feature/api-entities
merged with develop
removed testlog file
Merge branch 'feature/api-entities' of git://github.com/sulu-cmf/SuluCategoryBundle into feature/api-entities
fixed some issues with empty collections
Merge branch 'feature/api-entities' into develop