Potential addition to "Complementary Tools" page: react-bacon

I made a little library (just a mixin right now) that integrates [Bacon.js](http://baconjs.github.io/) with React components. For your consideration to include on the [Complimentary Tools page](http://facebook.github.io/react/docs/complementary-tools.html):

https://github.com/jamesmacaulay/react-bacon
