exercism/xfsharp — pull request #11 by jwood803 (2014-06-05 20:48:57+00:00)
Title: Add bank account exercise

Not totally sure I have everything that's needed. I tried to do something similar to what the [Clojure](https://github.com/exercism/xclojure/blob/master/bank-account/example.clj) solution had, but there's a chance I missed something.