Localisation updates from https://translatewiki.net.

Change-Id: Id946127bfa7e9cfc19ca4fe075089dce35b8ab3b
Localisation updates from https://translatewiki.net.

Change-Id: I3ddd4986b83725daaad83602a6ef6817292980b6
Localisation updates from https://translatewiki.net.

Change-Id: I91b9a698aea1047ff56b43c3517a157bae8094f2
Migrate to JSON i18n

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

Change-Id: I9d1048965645daf353714470454c382b754c5e17