Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  f83c08245488dbc5c6b219406e4a338e666a7f78

Migrate to JSON i18n

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

Change-Id: I6038216e65edf29bccd6e3c3b5f17ecffc9892fc