Localisation updates from http://translatewiki.net.

Change-Id: I09b8b0ef805e8e6cb2173b68dd9b6b4d1a6f8eec
Localisation updates from https://translatewiki.net.

Change-Id: I6f2daed2373dd83d73270502b325cca080682c8a
Localisation updates from https://translatewiki.net.

Change-Id: I65b8282011eee2456db3368358e32a884864503e
Localisation updates from https://translatewiki.net.

Change-Id: I59f7850df900d157857e8ec7f73f48d6ece045e0
Localisation updates from https://translatewiki.net.

Change-Id: If3db7401e6cd239e100446fdf1108853cf73a3b0
Migrate to JSON i18n

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

Change-Id: I769b0bc6c0350551cdc3e46b2748d409199af029