Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  f9c81a6176b1c5dd386bfc95b30c71c9b2d8aa54

Improved $.wikibase.siteselector

Fixed triggering "selected" event, minor refactoring, fixed/improved tests.

Change-Id: I7da068e1173cd39b688937265c6ca35f1876d49d