Localisation updates from https://translatewiki.net.

Change-Id: I0ac69cd01e7885cbb7b43063165acef2828d658f
Localisation updates from https://translatewiki.net.

Change-Id: Ie736dd5b76290243f95e649ab15e55f9a8cb910f
Localisation updates from https://translatewiki.net.

Change-Id: I621f377b60721265672846a66cb5c172fc647de0
Migrate to JSON i18n

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

Change-Id: I5d7e9d034c653443e6c264e22fbefdc31153f5cb