Convert to a DevTools Extension

- Currently works as a Chrome extension
- Should exist as a dedicated panel
- Figure out message passing

http://stackoverflow.com/questions/11661613/chrome-devpanel-extension-communicating-with-background-page

http://stackoverflow.com/questions/15184331/chrome-extension-cant-send-message-to-tab-with-id-of-1

http://developer.chrome.com/extensions/messaging.html

http://stackoverflow.com/questions/17508634/communicating-between-chrome-devtools-and-content-script-in-extension