- Polling is fired now every thirty seconds as polling too often was causing EQ to send junk acks
- No more recursive calls to PostRequestAsync() that was never going to end well.
* Clear cached name, groupName in Avatar when an ObjectUpdate has new NameValues.
* Some message paths didn't maintain group title, while others did. (Although I don't think that affects this implementation.)
* In the proxy, do send an avatar update for group title changing to empty string.
* ActivateGroup and RequestAgentDataUpdate commands from UI to app to proxy to sim.
* Message back to UI OnAgentDataUpdate, so that we can tell whether a given group of this agent is already active.
* I'm not a big fan of this code to be perfectly honest. It probably can be fixed better. There's possibly an error on the simulator side, or in this code, that I haven't managed to locate, when the EventQueue has an early return rather than long-polling as it should, and it's triggered by this code. Not sure if the official viewer suffers the same fault (possibly.)
