Updated mediawiki/extensions
Project: mediawiki/extensions/WatchSubpages  7a3df8fe55ea5e6e7904b44526629a17475d6c24

Migrate to JSON i18n

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

Change-Id: I785e60509bbac173610cfd3a8e555497cb450f34