Don't pass font to math inside text boxes.  Resolves issue #1321.
Don't pass font to math inside text boxes.  Resolves issue #1321.

thomasjm/MathJax,thomasjm/MathJax,wikimedia/MathJax,GerHobbelt/MathJax,dpvc/MathJax,jinntrance/mathjax,thomasjm/MathJax,thomasjm/MathJax,thomasjm/MathJax,jinntrance/mathjax,GerHobbelt/MathJax