Updated mediawiki/extensions
Project: mediawiki/extensions/MaintenanceShell  79e4b303bd1b7798320346d3bba8bd7ff0ee4eef

Migrate to JSON i18n

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

Change-Id: I79b3588c7c6c55b68329d03c5e2baa1a8a97bb92