Add [math] support for 4Chan's /sci/

[kchousos]

Hello, big fun of your project. The only problem I've found is the lack of support for TeX rendering in the /sci/ board. Any chance of adding it?

[thermosflasche]

+1 to this, would be such an interesting feature.

I see MathJax as a viable option; here's some docs for Android development that could come in handy.