Updated mediawiki/extensions
Project: mediawiki/extensions/Math  2c3e4a4b5d162c6977e0a8331fe7576ec6a1e737

Update to MathJax 2.3

* Uses the MediaWiki resource modules to load MathJax

Change-Id: I9471b1baf41d2bcc4fdc64a26e7d806e92b9b17f