Localisation updates from https://translatewiki.net.

Change-Id: I59069c422397d4c110769db61ced6b6de1a76bb6
Localisation updates from https://translatewiki.net.

Change-Id: I71c7da46a4653310f21745f61426b35e77679e83
Localisation updates from https://translatewiki.net.

Change-Id: I17a3d8f4165501edfec896a909706e9d376d6100
Migrate to JSON i18n

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

Change-Id: I292d82637bf1ba6639bb98d5dfb77c43b3eb84c5
JS injection fix (does HTML::element() no longer do this fully?)

Change-Id: I6de47dac7132d508cd47cb0b11e07404ac9be0e0