Localisation updates from https://translatewiki.net.

Change-Id: Ic7a2841e651b6b5ec8ef8574a2b0eed8a614c396
Localisation updates from https://translatewiki.net.

Change-Id: I7d5b37813236e466b93162d3e16ab21d99176b2c
Localisation updates from https://translatewiki.net.

Change-Id: Ibcc7740eeee41c25b2b40b4b298eb64968f844f1
Migrate to JSON i18n

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

Change-Id: I8e4576e3af99c03d219f6172cf13757ce93fd16b