Localisation updates from https://translatewiki.net.

Change-Id: Ib8565bcd06ade32c84325451eb84681b8e92ebcf
Localisation updates from https://translatewiki.net.

Change-Id: Ic53f6313d80c6be94f391b16e08c07bb03141952
Localisation updates from https://translatewiki.net.

Change-Id: Icc45c893d173fb89caa4b9376833c15e2f4b85e2
Migrate to JSON i18n

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

Change-Id: I362c2759170e550d797dc33d5d2215763e85fcf5