Localisation updates from https://translatewiki.net.

Change-Id: I3d4bdd9422c362b4ead5af8f5d086beb6fcc874a
Localisation updates from https://translatewiki.net.

Change-Id: I862e6d72eb1e426fbb6d82d56a4e275d68721444
Localisation updates from https://translatewiki.net.

Change-Id: I4b25e4711bb38ca698475c2efc1599707434773d
Migrate to JSON i18n

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

Change-Id: I43768d119ca1dd828314fb0d3311ffd16b8228a8