Updated mediawiki/extensions
Project: mediawiki/extensions/ProofreadPage  9131e0c68f679a9edea3bb78c1e34bc8dbf49522

Migrate to JSON i18n

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

Change-Id: Iec91fcd20eae128e530f3405f6773e8b42a95ab2