Pivotal bug 61004526 os server issues

Works with AWS cc2 workers.

Will create issues for 

1) Request never gets to server, which happens for a) BigPATTest on Vagrant, b) BigPATTest on AWS with c1 worker. In debugging, drilled down to see failure originate as (Unknown) NetworkError in QAbstractSocket::write (SocketError 7, "Unable to write"). (OpenStudio side)

2) R cluster does not get created. This problem shows up as DataPoints on server, but never leave na or queuing state. If you look in Rserve.log, you can see the cluster creation process in lib/analysis/batch_run.rb start, but never complete. This was observed with PATTest on AWS with c1 workers, both through PAT and through run_example.rb (openstudio-server-only code).