a bunch of changes:
* renders to pure html instead of cell based rendering (it's faster)
* removed the visible bell ( that was awful slow )
* removed the background color change, when content is bold ( Midnight commander looks nice now )
* manages focus (click on, click elsewhere on the page)
* added a simple node.js example using pty.js
* fixed some minor bugs (still some problems with /usr/bin/top)