Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  9411057591878e004a4a74b6b3ea092937d11df9

Clear entire interface

In the future, I'll have a nicer UI creation helper method that will
mark these as clearable and empty them for me. Until then...

Change-Id: I8a03040a294a4fec19cd7714d4219f5d571b0c48