- `HubEndPoint<T>` : `RpcEndPoint<T>` where T is the Hub type. Optimizing for a single hub per connection here.
- Hubs get OnConnectedAsync and OnDisconnectedAsync methods that are invoked at the right time and with the right scope.
- Introduced HubLifetimeManager<THub> (naming TBD) which is the center of the universe for Hub behaviors.
- Exposes a list of connections for user code to act on
- The connection list is thread safe (uses a concurrent dictionary under the hood)
- Removed the Bus and just used the connection list in the samples
David Fowler