Localisation updates from https://translatewiki.net.

Change-Id: I8688d348479502bdfba3053fda04809dd2b7e8ac
Localisation updates from https://translatewiki.net.

Change-Id: I83a08c331c6dc137967d2c11bac8c6b6b3502ce6
Localisation updates from https://translatewiki.net.

Change-Id: I7744b2f2bbbedf98e0f6489606730e08e8048d8c
Migrate to JSON i18n

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

Change-Id: I0dd5bb094353ec6978bccce3cac923e3aef299dd