Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  9ac7aaa8583d174ab81205aebd171c4e23ebd5a4

Clean up css selectors for moderated titles

flow-moderated-topic-title is no longer an h2
Move to titlebar.less since these appear in the title bar
of a topic

Change-Id: I1cd5b745e3db1e90fc4026578b220f70b798029d