Remove zero state of Forum related discussions module
Remove RelatedForumDiscussions zero-state css (VOLDEV-46)
VOLDEV-46: RelatedForumDiscussion performance fixes
VOLDEV-46: add backwards compatibility
Merge branch 'dev' into VOLDEV-46

Conflicts:
	extensions/wikia/Forum/RelatedForumDiscussionController.class.php
	extensions/wikia/Forum/css/RelatedForumDiscussion.scss
	extensions/wikia/Forum/js/RelatedForumDiscussion.js
enforced VOLDEV-46 changes
Fix date format
Merge pull request #2959 from WikiaVolDev/VOLDEV-46

VOLDEV-46 Remove zero state of Forum related discussions module