Execute tests written in other JVM langs (esp java)

I"m not sure how practical this will be, but will investigate.

I think it will still be best to write suite in clj.  Maybe a function to create a list of tests from a class's public methods?  Annotated methods?  Forget trying to support testng's annotations, that won't be practical at all.

Java basically just sucks at being a data format, which is why half of testng's input has to be xml.
