Updated mediawiki/extensions
Project: mediawiki/extensions/CirrusSearch  c577c9d361743b81d75a4c6cc07310f551c7cf22

morelike: with multiple titles

Support "more like this" searches with multiple article titles.  This might
be useful for SuggestBot.

Bug: 66737
Change-Id: I360283e323accc8223376b9bf11b52408243d12d