Updated mediawiki/extensions
Project: mediawiki/extensions/UploadWizard  acb43c821c29139d02ead76d0a71188b7469bc5b

Migrate to JSON i18n

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

Change-Id: I1f2de0edf19ea68c4d61c1aa92f975c55c0690b1