Updated mediawiki/extensions
Project: mediawiki/extensions/Offline  81970ecb25f3591f902c62fae033f186b410cb35

Migrate to JSON i18n

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

Change-Id: I0fe454249f38f3f01a3ce3a041fccf6f80d15bf8