Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  15705664dd32b4b047ee958098f6c8a42ce083bf

QA: add tags to run in IE builds

Also add tags to run all tests in beta and test2. Let's see
what happens and remove them later if necessary.

NOTE: one test had no tags and ostensibly should run only on mw.o
We may have to remove them later, but let's see what happens for
now

Change-Id: I9c4adc7803afc975d9643a35631801bbac459eb7