Updated mediawiki/extensions
Project: mediawiki/extensions/OnlineStatusBar  198dc7db2465958e981c55504658d89bdd5dcbff

Migrate to JSON i18n

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

Change-Id: Ib8c1a6bb543599ce52b3b8d29063e614b1c55c10