Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  a487c0d55c7d2d0dd09be2920231a66851c13f1a

Minor code restructuring of toolbarcontroller widget

Moved toolbar event listener handling into its own functions.

Change-Id: I8a2d9d636183bf48119d768ffe364fd1b8eecf9a