changed the signatures of the reply node tracking before adding subscriptions
more refactoring to get ready for subscription storage.  Eliminated the shutdown visitor
eliminated the visitors completely
morphing the reply Uri mechanics for hopefully the last time before doing subscriptions
correcting the LQ reply Uri to being machine specific.  Closes GH-140
created a new Subscriptions namespace now that it's going to get a lot more complicated
checkpoint:  added some spiked in classes to model subscriptions
TransportNode.Equals based on the reply Uri's
more spiking on subscriptions
the changes to allow for the scheduling config by settings broke LQ registration, this fixes that