Localisation updates from https://translatewiki.net.

Change-Id: I19fbd0196c438e2ff70a5aed5533f636d6edbfa7
Localisation updates from https://translatewiki.net.

Change-Id: Ic1984f357b5e0feee309c5e550b8087d7c069a3b
Migrate to JSON i18n

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

Change-Id: I7b8e35f72d2cf193395bb029b9e96d3facc9d5eb