Adding pyrabbit depedency
Get message total count: Server and per queue
Rabbitmq redelivery metric
New rabbitmq metrics

 * rabbitmq.node.usedmempercent
 * rabbitmq.node.usedfdpercent, File descriptor usage
 * rabbitmq.node.usedndpercent, Network descriptor usage
Use infos from first node if no name is passed
Adding pydoc
Merge pull request #5 from sievetech/feature/rabbitmq-metrics

Feature/rabbitmq metrics