Updated mediawiki/extensions
Project: mediawiki/extensions/Math  cbbf5453d1a52e8fa10815b6af93b2e715313b24

Enable MathML rendering mode

This change allows to registered users
to test the new MathML rendering mode.
Invalid settings for math rendering mode
will default to MathMathML.

Change-Id: I75f24cb762609d6728247e3758fcc18f2ebfc6e6