Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  979f113d16783bbf0639c945147f530368d3f4ce

Better message to explain Images on Special:MobileOptions

Follow up: I7a2e05edfdc8f438c3e7e8a43edc0eeb0122c34d

Change-Id: Ie9b5c2c2907d0621bc2acefb42e98a0401f1dfa5