Remove dependency on Requests. Closes #13.

This is sad! Requests is so lovely. However it means the client side Python
interpreters (likely to be pretty stock) must have Requests installed which is
unlikely. Additionally I don't use much of the Requests special magic and
hopefully the HTTP link will be reasonably reliable.
Have client print result.

This means even if returning results goes horribly wrong, perhaps
the user will still be able to fetch them from the GridEngine output files.