Extract expectations to separate project

Fix for https://github.com/modocache/Quick/issues/29

![quick nimble 2014-06-17 16-04-13 2014-06-17 16-04-19](https://cloud.githubusercontent.com/assets/829783/3300369/46480f52-f620-11e3-8ff9-33ebca92c0f8.png)

Cool. By the way, there's some background info on callsite in #41.