Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  95a88d43d13eca2188f5af050a3f39897c44ab8b

Use oojs to extend multilightbox objects

Simple now, only really aliases the classes, but we'll use them to replace
the hooking infrastructure in the near future.

Change-Id: I963a4887a717c9bb064e30fa5fb86bbccb7186a1