Localisation updates from https://translatewiki.net.

Change-Id: I9068e6a5d098d6c0d32578fbeab3e744d41f76bc
Localisation updates from https://translatewiki.net.

Change-Id: I6180455715c42446c8421fbb90ef78c52ce27f51
Migrate to JSON i18n

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

Change-Id: Ie7689ff8db1fac0228f318faf636c52ee4335fd9