Created Mac Library + XCTest (Xcode5) compatible version.

Fixes #2.

Let me know if you have any questions..

![131005-0001](https://f.cloud.github.com/assets/262517/1275359/b37b31a2-2df4-11e3-8e1e-ac913d63254e.png)

God, this makes unit tests ACTUALLY USABLE!  Hallelujah!