Localisation updates from https://translatewiki.net.

Change-Id: If1306b1e3c2e8385abe0c8560b7649808ea84b47
Localisation updates from https://translatewiki.net.

Change-Id: I961df47e838727593df5b4b20b32e05273260d8e
Localisation updates from https://translatewiki.net.

Change-Id: I48c020837ca071047646cbf6e029c63700057e57
Migrate to JSON i18n

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

Change-Id: I1d8e88a35f788df942ee997732baedf36dfc3d9a