Remove the util service

This is now in a `formHelpers` object declared using `module(...).factory(...)` this is located in the /helpers directory. I also moved the helpers.coffee into a documentHelpers object for consistency.
@aron: I'm thinking maybe we should make baseURI a contstant, or a once-calculated string (for performance reasons). I will not say that this is terribly slow way, but currently for every baseURI request we create a new documentHelper instance (because it is a factory), and our function for the baseURI calculates a little for accessing the baseURI. This is not really needed we have make this once for each url.