Updated mediawiki/extensions
Project: mediawiki/extensions/UploadBlacklist  7b2661f22d2ec06501e525cc0fcf01a1f7e6832e

Migrate to JSON i18n

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

Change-Id: I0863c7fd112fdd937fdd2ed54a3d649c40e003be