Coffee Script patterns and Docco style

I've changed the pattern matching in coffee-script so that it detects the params now (it was missing them before).

I've also included a new style to match the default colours of http://jashkenas.github.com/docco/ 

At the same time, I'm submitting a pull-request to Docco to offer HighlightJS as an alternative to the python-based syntax highlighter it uses.