Updated mediawiki/extensions
Project: mediawiki/extensions/UpdateMediaWiki  b188d19a9c938478dea7058e333fa83e646c04ea

Migrate to JSON i18n

Procedure per https://www.mediawiki.org/wiki/Manual:GenerateJsonI18n.php
with shim.

Change-Id: If6b61df5042e575587b8806887b2d822447c2287