Updated mediawiki/extensions
Project: mediawiki/extensions/VisualEditor  bb983c88d4f299199f725428dba1e6a0295dd427

Don't build out save dialog when initializing editor

The save dialog DOM is pretty big, so building it on demand
like every other dialog out there seems like a good idea.

Change-Id: I02077c3e45f01d3467d41616eb879bd1d608a82b