Downgrade to MathJax 0.2.5
Downgrade to MathJax 0.2.5

* bin/tex2png 'E=mc^2' fails otherwise

see https://github.com/mathjax/MathJax-node/issues/82

physikerwelt/MathJax-node,wikimedia/MathJax-node,wikimedia/MathJax-node,physikerwelt/MathJax-node