Description of problem:
Currently, Nuage provider relies on qpid_proton gem 0.19.0 which implements no client heartbeating mechanism hence connection is being closed every 2-3 minutes. As of today (https://issues.apache.org/jira/browse/PROTON-1806), there is qpid_proton gem version 0.22.0 available with this functionality implemented, so Nuage Provider should start using it.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Add Nuage Provider with eventing enabled
2. Observe AMQP traffic in Wireshark (filter: "tcp && tcp.port == 5672")
Nothing is being sent when there are no events
Client must send empty heartbeat packages so that ActiveMQ doesn't take us for dead.