Localisation updates from https://translatewiki.net.

Change-Id: I560adadcd2976dbbf244955af308a73949544903
Localisation updates from https://translatewiki.net.

Change-Id: I4e7179fff5f71ed7a07c36910c8fc98037768926
Localisation updates from https://translatewiki.net.

Change-Id: I0768bd095fe4380127083128b5ea35d358dcf326
Migrate to JSON i18n

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

Change-Id: I10b300c9d4a68884058ddf4e181e0b4c3310ae63