Syncronize VisualEditor: 370aadd..30d50cb

Change-Id: Ifd2dcf8aa5975812a349e5c2b2389147a23fb9fe
Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  7f007bcd2a3cd1c08a233e997dbf6daa4e05df30

Hygiene: Change editor URL to use leading /

Bug: 70904
Change-Id: I124dee59b0536be36b8c8977301aa398d414c38c