Syncronize VisualEditor: 527d432..674406a

Change-Id: If23a7a86f1cc538cf3005f76b4f44f43c5fc690e
Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  27871f1e044ad33634b08de4fe903e167bbc401f

Renamed mediawiki-selenium Ruby gem to mediawiki_selenium

Bug: 60820
Change-Id: I35e813fa5b4b12081c6a29585c8833caf06d0908