Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  74f3265b24ea000e77f166a621fc5146f8bd00c7

Regression: Don't attempt to load EditorOverlayBase in stable

This fixes the editor in stable mode.

Change-Id: I5be9fd726323ba696aa88bd707a2dbbf3fffee0c