Add support for literate coffeescript files

Although the CoffeeScript processor can handle [literate CoffeeScript](http://coffeescript.org/#literate) files, they were not being included in the filter.
Further changes to allow Literate CoffeeScript

Although it was allowing the additional extensions, it wasn't letting the compiler know that that the string being passed should be processed as literate.
Formatting
Update README and CHANGELOG
Release version 0.3.0