cleaning up venue persistence

[Robert Olson]

I think that it might clean up the persistence semantics of the venue if 
the persistent state were separated into a separate object which then 
stored in the persistent data store; the awakening of a venue then involves 
creation of the dynamic venue object, passing it the persistent object 
obtained from the data store.


On the topic of persistence and venue replication, ZODB supports the notion 
of multiple applications using a replicated data store, with coherence done 
at the object instance access level... no checkpointing required.

--bob