Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  a0cfcd48a5d7ff2315e46f1025fee7e8bd137a09

Tooltips for loads of things

Change-Id: I993bf60909024453a14de85af6239bded02eb8a6
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/546