Updated mediawiki/extensions
Project: mediawiki/extensions/WikibaseQuery  ec17b9226e4192db38ba59821e0aa1b1bbdf15aa

Initial step in moving out code from SimpleQuery special page

Includes introduction of two simple adapters to abstract away
from MediaWiki design issues. These can later be moved to their
own component, as they are of use elsewhere, and more code is
needed to isolate other users from this legacy API.

Change-Id: If13915c74f7bc4bb7f13ee451e2f589d19439198