Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  8391520a85e24eda3e0de10e4b8b0a78d7c73811

I-1: Finish topic moderation updates

Undo is now a form that submits without a dialog popup.  Hide/restore now
shown on the contributions page.

Change-Id: I493b1c6f37de68c00971e45848722e1c1e4f8880