Fixing expected keys
Merge pull request #582 from jovanchohan/key_fix

Fixing expected keys
only starting flower on the login node, and binding it to the private ip instead of localhost
Merge pull request #583 from shatterednirvana/flower-on-euca

only starting flower on the login node
retrying run_instances command if we get a EC2Response error, up to 3 times
Merge pull request #584 from shatterednirvana/retry-on-run-instances

retrying run_instances command if we get a EC2Response error, up to 3 times
Merge remote-tracking branch 'org/testing' into exception-handling-on-appcontroller-client-calls
not starting up flower at the moment, as it hangs the appcontroller