Updated mediawiki/extensions
Project: mediawiki/extensions/WikimediaEvents  184f9891cb0fba9ce26d7e354d7b1e05ba97662c

Migrate to JSON i18n

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

Change-Id: I3914a549821a76b4d131eac87e06e6e717e45b08