Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  6e5a1cb18566984e10a94dca100b2f1b8b164228

Add opt-out/opt-back link

Change-Id: I998b7ad3ecb0b7e815f9ff0d5f871267b91c109d
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/703
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/704