Updated mediawiki/extensions
Project: mediawiki/extensions/PageImages  bddcacf7fb873d894fd476c798acf58ad00c6864

Migrate to JSON i18n

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

Change-Id: I5b344b529252da5c24e261d3cef3acafdbc14bf0