Updated mediawiki/extensions
Project: mediawiki/extensions/DataTransfer  5b34ea372e53c98ecea3501f1ce860ff220a2018

Migrate to JSON i18n

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

Change-Id: Ib076520f6482da2f14314eb3053c77bc95823bae