Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  eae6f764c2d6c3b7d8a392100ff1343496b52d9a

Fix JS error caused by change in OOUI

hide() has been replaced by toggle() in the latest version of OOUI

Change-Id: Ia868ea1a41430ae566109222ebee6e778db12ad8