Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  e7a0333d6a7c8a4f6397aa187942490cb2cf4a8b

Hygiene: Cleanup PHP generation of icons for skins and special pages

This will make transitioning to mw-ui-icon easier

Change-Id: I60b2e50525f694740c0ec43577c37d9441f8bfd5