authors resources
add missing resources proposal
[api] CS-5332 - add authorstypes and articlesauthors
[api] CS-5332 - add authors search
[api resource] CS-5332 add article author type update
[new_api] CS-5332: unlink article author from article
[wip] prepare sorting
CS-4908
[new_api_resource] implement articleauthors sorting
[new_api_resource] add checking order parameter
Merge branch 'master' of github.com:sourcefabric/Newscoop into CS-5332_author_related_resources

Conflicts:
	newscoop/.htaccess
	newscoop/src/Newscoop/GimmeBundle/Serializer/Image/ImageUriHandler.php
[api][docs] improve docs
[api][docs] improve docs
Don't fetch all plugins one by one
improve translations listeners
revert camptemplate
implement database cache to most used objects
cache objects in metaclasses
Implements the cacheService for the MetaLanguage
Implements the cacheService for the MetaAttachment