Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  ef5934e3670b27551df2a9033e9dddc266280768

Cache items found in ClientSiteLinkLookup

Caches the items which have been found by title in the ClientSiteLinkLookup
in an array and makes it available through the WikibaseClient default
instance. This improves performance a lot.

Change-Id: I0b7477aead578384f3d1331fc984e2ce48bb9e28