Updated mediawiki/extensions
Project: mediawiki/extensions/NewUserNotif  ccbab4b6c21d69619f78f3d02fc83f2bab822c37

Migrate to JSON i18n

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

Change-Id: I53eda7a9eeb7846a5fe883fa77d173d1faecf79a