BAC-1046: show a message when avatar uploads are disabled
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Merge pull request #2199 from Wikia/bac-1046-avatars

BAC-1046: show a message when avatar uploads are disabled
PLA-1004 introducing RevisionService method for acquiring first revision data, add method in ArticlesApi to parse avatar and user name data
Merge remote-tracking branch 'origin/PLA-984' into PLA-1004

Conflicts:
	includes/wikia/api/ArticlesApiController.class.php
Merge branch 'PLA-984' into PLA-1004
PLA-1004 adding users info gathering to getNew method
Merge branch 'PLA-984' into PLA-1004

Conflicts:
	includes/wikia/api/ArticlesApiController.class.php
PLA-1004 restore merges changes
PLA-1004 adding creation date to output
PLA-1004 fix for wrong key
Merge branch 'PLA-1004' into PLA-984

Conflicts:
	includes/wikia/api/ArticlesApiController.class.php
PLA-986 output changes