Updated mediawiki/extensions
Project: mediawiki/extensions/DeleteBatch  2fa609eff09167a41198bde610f293c8457e0ae4

Migrate to JSON i18n

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

Change-Id: I48500b2af24f493dd2c2dc19d2fc212d64ad9c0c