Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  3142dfc6df3227ac2d133f0eacf6fffcbb6aff6b

Fix Undefined Index and array_merge warning in Lib

Found while running update.php

Change-Id: I5c1b88f1fe2c0227f4751a4b25794c61b07a99e8