When closing Connections or channels, clean up a few more things to break cycles to allow garbage collection.  Thanks for majek04@... for pointing this out and generating some nice graphs to show the problem.
When closing Connections or channels, clean up a few more things to break
cycles to allow garbage collection.  Thanks for majek04@... for pointing
this out and generating some nice graphs to show the problem.

arnaudsj/py-amqplib,JustinTulloss/harelib,JustinTulloss/harelib