isense api testing app written in java

Java api test app is complete. 

There is a problem with the append dataset api call. It fails (log shows error 422) but the api call returns success. There is a comment in the api from @jaypoulz that says "This currently works for horrible reasons regarding how the website handles edit data sets ** Will fix hopefully --J". 

I will fix this in another pull request but new Jeremy needs my current api fixes. 

@stowellm