Wikia/app — pull request #2858 by nandy-andy (2014-02-20 18:04:42+00:00)
Title: Conn 430 - clean up of varnish purge requests list

**DO NOT MERGE - work in progress**

* new method `ArticleComment::getSquidURLs()`,
* new hook in `ArticleCommentGetSquidURLs`,
* removed logic in Forum which sends the same URLs to the purging list (ArticleComments handles that),