Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  642cfc915ba44d7175a76d1d6c24cde04cb465c7

Improve tests for EntityView.

Minor refactoring to improve testability.
This is ground work for tracking more types of links.

Change-Id: I00f7e2a9cfe02024642bdaf2d99b8d57e5b2e9df