Add/duo test

duo-test

targets are the same, only one `port=` var is removed since duo-test has it's own server and it handles ports + kills the server when the use is done.

also `make test-sauce` works :)

![screen shot 2014-07-07 at 11 13 51 pm](https://cloud.githubusercontent.com/assets/1661587/3501311/4e5522a2-0615-11e4-805d-6a1749fbf0f3.png)

cc @ianstormtaylor @lancejpollard