Updated mediawiki/extensions
Project: mediawiki/extensions/URNames  ab594cee0951eda7e79e49ca881e732d412b30b4

Migrate to JSON i18n

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

Change-Id: I395a1efd91a24095c58c9f4113ca5d0351bc0ba3