Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  5073b92b521227d64915257e3189bb79112d7e22

Enable fast finish on TravisCI

http://blog.travis-ci.com/2013-11-27-fast-finishing-builds/

Change-Id: Ia0e2ff649ae65a118d80b9656d4a91439a23dd52