Updated mediawiki/extensions
Project: mediawiki/extensions/Duplicator  ab6846cd55a4aeda56556f9eddb4f8f868fc8865

Migrate to JSON i18n

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

Change-Id: I10512e0dcba6881d4b56de522f3b42bbaf75a694