Hey @briandunn!

First, a big thanks for putting this gem together. I'd like to know how much work would be required to allow using other rspec formatters? I'm mostly interested about using a formatter that will immediately print failure in the while the specs are still running. Eg: https://github.com/thekompanee/fuubar or https://github.com/grosser/rspec-instafail.

Would it be something possible at all?