Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  07a937571d8dfce5cfa9071587981b3148b7ff16

jshint config and fixes, FINALLY

Every patch we've submitted up until now has been magically very good
at jshint, because I'm appropriately OCD about it, but now we can actually
point at results.

Also we'll enable voting very soon.

Change-Id: I028fa78a47778c8a4050f6b77623c6bfdc4f9c5b