Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  c9fc2c707f5e5a1905c90f38095c8d9c2c0a8a75

Make the image and navigation buttons unselectable

Change-Id: Iec6d8a9511e2a4c508da7524c9fb0db499d1eb8a
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/214