Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  26e1f9893fc585ff5b793eb05f21c10903cba613

LinkBeginHookHandlerTest: Improve test for new entity special page links

By testing with all entity types known to the current wikibase install
and testing for both the URL and the title to be correct.
Also fixed the assumption that special page name are English.

Change-Id: I68d6061ceb639fbf413b50292668b0c4c25b567c