Localisation updates from https://translatewiki.net.

Change-Id: I4a78b15048aa16044dc07d762f83e2cb083cfc64
Localisation updates from https://translatewiki.net.

Change-Id: Ia8d9be48836affa56405eded8995fc70d2bda457
Localisation updates from https://translatewiki.net.

Change-Id: Id9318445262c186fa96683bbf5577e93d54382ed
Migrate to JSON i18n

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

Change-Id: Id461561bde71f299236648ba17aaaff70f7f676c