Propose talk about debug.js

A talk about <a href="https://github.com/amasad/debugjs">debug.js</a>, an experimental pure JavaScript implementation of a JavaScript stepping debugger.

I'll briefly talk about the implementation then present demos like:

1. <a href="http://amasad.github.io/learnable-programming-demo/"> A Bret Victor-inspired code execution visualization </a>
2. <a href="http://debugjs.com/"> In-Browser stepping debugger, console etc. </a>
3. If I had more time I'll present more demos, like runtime analysis, heat maps etc.