Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  70fe157be39dad498f2a6fdecb0dcd8bf37e42f8

Add build/jenkins/mw-apply-wb-settings.sh

Also remove stuff from the old jenkins entry

Change-Id: I1e610f9c46cb49377c1237e1b127b8505434efd2