Localisation updates from https://translatewiki.net.

Change-Id: I89547520b59e3473b9d313d40e984276d7d5ab89
Localisation updates from https://translatewiki.net.

Change-Id: I9486e837cb255bcaa2c6765efb06d226bb42af6f
Localisation updates from https://translatewiki.net.

Change-Id: I96e1fb54737381980e8fd5cb44bdf01081e72743
Migrate to JSON i18n

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

Change-Id: I70ebfdb0767f0d1a0215694e353af9748ad0d69a