Update to CoffeeLint's new external reporter style

    coffeelint --reporter coffeelint-stylish src/coffeelint.coffee

I haven't published the next release of CoffeeLint yet, but it's going to support the above syntax for 3rd party reporters. Reporters can be installed as a project dependency or global. Project dependencies are preferred.

https://github.com/clutchski/coffeelint/commit/1edf536935d969e0efbc4d26836e6420298d4b03