Updated mediawiki/extensions
Project: mediawiki/extensions/Echo  763370707110e76af72683262c051857a90cc4df

Removing constructor that doesn't do anything.

Change-Id: I8b6c1d3a88e57f970fd1edef1b4df1b8bf9785e4
Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  b704f294f8d889dfdf01332fbdae7f0cfe49e84d

Add tests to MultimediaViewer

These are just smoke tests. I will add more in coming versions of this change.
Consolidated various cases in one tests. Added tests to validate for legit clicks.

Based on Idfbec829399ff6969cd01be3c13a8ed7a66a1fef

Change-Id: I366c7af9a5cf43361d8293183c9da117bc5d4971