Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  42bf9dea895461854129e3d80dbb7fd1132ffe99

Add Special:ItemsWithoutSitelinks that list all items without any site link

Edits also the label of Special:EntitiesWithoutLabel to be consistent with
the others special page names.

Change-Id: I032208726699d104c8ee76ef97e3f61b5f78f334