Pull Gff3 from Apollo webservices

The webservices can be found directly on the Apollo instances, but they should be globally available:

http://icebox.lbl.gov/Apollo2/WebServices/

You should want IOServices -> write

An example script written in groovy is here:

https://github.com/GMOD/Apollo/blob/master/docs/web_services/examples/gr...

Some more doc here:

http://webapollo.readthedocs.org/en/latest/Web_services.html