1 main/listener Thread 
    listens for connections
    passes socket via queue
    cleans up old sockets
Pool of receiver threads
    check data and send OK or ERROR to client,  
    instruction to close socket back to main thread
    and puts ref to data on another queue for...
Router thread
    Pulls refs off the queue and decides which of several
    handler threads will get it (may be one of more).  
    spawns handler if it is not yet running then puts 
    ref on queue for that handler.
Handler threads
    do thing like logging, hearbeat monitoring
    forwarding exceptions to a console etc etc.
Self Heartbeat Thread
    Send periodic heartbeats through its own
    mechanism to another monitor console so
    we know it is still working