Some console improvements

Turtle drawing works.

~~I was going to add some code styling and imitate [Skulpt.org](http://skulpt.org) but it didn't work out. When I have more time to focus on it I will look at it again.~~

Console is now styled very pretty-like using [CodeMirror](http://codemirror.net/). Draws turtles. Does not give good feedback on errors. See [Here for a working demo](http://pyke-django-70326.use1.nitrousbox.com:4000/spring2014/console.html).