Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  9a8c81983802307dfd9b13d4cf3931f28e6192c1

Deferring toolbar controller event handler registration

(bug 54098)
In order to improve general JavaScript initialization performance, only the event handlers
that are needed to create a toolbar are defined within the toolbar definition now. All
additional event handlers are registered dynamically as soon as they are required.

Change-Id: Idbe72fb8a1889d992ece9806317e21bc77e6270a