Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  991d4a1fe717bc50cf0427dc2ba342baa6ffe628

Hygiene: Fix dependencies on mw.user

This is breaking in debug=true mode since M.define needs to be
available

Change-Id: Ieaf242963f65e8e2231d80053efff2d596b9fc31