Localisation updates from https://translatewiki.net.

Change-Id: Ib6050c05eae7010f2deaf1074d131ac96161b26b
Localisation updates from https://translatewiki.net.

Change-Id: Iaa1f75a9837f6ea449ae947c8f244d652df85850
Localisation updates from https://translatewiki.net.

Change-Id: I478d6bf6038c1a9cb63c6348af0d05af825f9b19
Migrate to JSON i18n

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

Change-Id: I4360cd89bdaf53cfb571566817021065a00d523b