Merge pull request #874 from takeit/master

Include human-friendly name in article type's fields
Merge branch 'master' of https://github.com/sourcefabric/Newscoop
Merge branch 'master' of https://github.com/sourcefabric/Newscoop into AENV-286
AENV-286 - Make the AES plugin aware of the article language and publication object. Provide the proper API enhancements to provide that info to the AES.
getters and setters for locking article
added specs for publication and language handlers
updated translation resources
AENV-257 - Locked articles can be loaded
tables, data update for article locking mechanism
user handler for article API
added a new endpoint for article API to lock, unlock article
return a proper status code when trying to set the same lock status
spec for API's ArticlesController
articles controller spec improvement
locking mechanism improvements
language and publication objects improvements - articles  API
set since version 1.2
clear AES plugin link
getArticle improvement
create a single API route for locking/unocking