store wiki match for on wiki search if global config set right
introduce wiki match into on-wiki search if global set -- need to fix placeholder values
update wiki match code to include necessary messages
move wiki match extraction to parent queryservice, impose minimum of 50 articles to register match
updated tests to accommodate match suppression logic
Merge branch 'hide-bad-wikimatches' into wikimatch-on-wiki-articles

Conflicts:
	extensions/wikia/Search/WikiaSearchController.class.php
	extensions/wikia/Search/classes/QueryService/Select/InterWiki.php
	extensions/wikia/Search/classes/QueryService/Select/OnWiki.php
	extensions/wikia/Search/classes/Test/QueryService/Select/InterWikiTest.php
	extensions/wikia/Search/classes/Test/QueryService/Select/OnWikiTest.php
update extractwikimatch to use correct query abstract
update abstract select test for extract match
remove extraneous check in WikiaSearchController::registerWikiMatch