Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  3c948216cca247a939215a599d58e37f451dc9b5

Hygiene: Merge side bar menu in SkinMobile into SkinMinerva

Add FIXME notes saying that SkinMobile and MobileTemplate should be
removed and make clearer the purpose of SkinMobile and MobileTemplate

To test add to LocalSettings.php
$wgValidSkinNames['minerva'] = "Minerva";
$wgDefaultSkin = 'minerva';
and load desktop site

Change-Id: If9359a6e56147686c16aa34e99cdd0b40de89efd