Live rendering, basic mode.

IE7 fallback using event source streaming. Currently very specific to my
environment. Addresses #651.
Clean up some of the older live render code.
Use window.onload to handler runner iframe generation.
Prepared source rendering using postMessage. Woot.
Style and sandbox the runner iframe correctly.
Split runner out to separate file, and restore debug mode.
Document the debug escaper.
Save and restore state for the render iframes.
Clean up javascript stripping logic for readabilty.
Fix doc formatting.
Add renderer to live.js for handling messaging to & from the runner.

Also restore the iframe text size indicator.
Pass focus events from runner to renderer.
Resize embedded bins using postMessage.
Restore sending reload to listening pages.
Simplify sendReload logic.
Add proxy console that posts up to parent. Not connected to live yet.
Proxy logs out of rendered iframe.
Clean up console keydown code, with keylib to make it readable.
Remove code completion from console.js.
Run commands in the console with events.