Producer status is ignored when config is updated on cluster

Even though producer status is OFF, when a configuration property is changed an event is sent to notify all nodes in cluster.

Basically this comes from EventProducer generation on hazelcast module.
When an EventProducer is requested to org.apache.karaf.cellar.hazelcast.HazelcastEventTransportFactory it is instantiated without looking at configuration, so whenever getSwitch() method is called on EventProducer a BasicSwitch instance is returned with ON status.

Injecting configurationAdmin on EventProducer created by org.apache.karaf.cellar.hazelcast.HazelcastEventTransportFactory will solve the issue.

getSwitch() method would return current producer status.