Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  e27f42efd224274a40135882e3cf8ddae8d43f7d

Refactor caching for EntityRevisionLookup service.

This makes WikiPageEntityLookup oblivious of caching,
and uses CachingEntityRevisionLookup as a decorator
(twice) to provide two layers of caching (persistent
and in-process)

Change-Id: I08f2c6d154da10d0504c86cc18d35f36d800375e