Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  1a3e04a7afb6d90605097945a9d0af818cbc3fe0

Cleaned up QUnit test files

siteselector, entityselector and SiteLinksEditTool test files conform to jshint now.

Change-Id: Ice89b00f976469c594c2df0470ef79790cf06539