Updated mediawiki/extensions
Project: mediawiki/extensions/YouTube  bd6119463cc70a9150606dd4b08a25be43e921d0

Migrate to JSON i18n

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

Change-Id: I3a872890c080fba725a1d12bb8bd270c416c6440