Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  e4e68115f586e74d9d4b587e88645d8f30d13d67

Load oojs-ui on demand when "use this file" is clicked

Change-Id: Ia3b6b91c7ff0cb223f5f312eb901726fb6adcf35
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/426