Add CoffeeScript convenience methods

Adds a number of convenience methods from CoffeeScript to aid in converting
modules to plain Javascript.

Didn't add the `createDriver` and `createAdaptor` aliases for `instantiate` because I don't really think they're necessary.

With this merged in, we can use `npm link` to develop against this version of Cylon instead of writing out the same aliases for each module as we're converting them to JS.