Now keeps an eye out for shutdown packets... not that I've seen one ;) Just looking at the QueueMonitor code suggests it could happen.... so it's taken care of. The ordering of checks is not ideal... that needs to be looked at.
Now cable to detect when queue's have been deleted. Still need to watch out for a Queue being shutdown though. When a queue is deleted it's rrd is removed, and it's def file cleaned up if there are no other rrds associated with the Queue. All the png images are cleaned up, as they will be remade later on.
An experimental go at using rrdtool to graph i-scream data. Graphing the Queue's seem like a good idea, as this wasn't done anywhere else. The README file gives details on how this works.
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