Updated mediawiki/extensions
Project: mediawiki/extensions/GuidedTour  a7215ea0919a76a446ab4599dca1ccc93c61c016

Use 'json' module instead of deprecated 'jquery.json'

Better performance for users of modern browsers, and avoids warnings

Change-Id: I4caa6236ece74093ca7e75a1634ae5d78a235492