Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  56690fb2a7bab7eb52f368d0c983e77474ab175f

Add "do not edit" in generated autoload.php

Nobody besides ErikB knows about scripts/gen-autoload.php, maybe this
will help.

Change-Id: Ia646d5216b737c820a6f7ef1ebdf651817a5b07f