title: How does SignalR map a request to the hub?
body: <p>I am curious as to how SignalR maps a request to the Hub?</p>
  
  <p>How does it select which Hub to use? Where is the name of the hub in the request?</p>
  
  <p>Additionally, how does it select which action in the hub gets to handle the request? Is that part of the request url?</p>
  
  <p>And finally is there a way to tap into this pipeline (eg. an IActionFilter, IHubSelector, IActionSelector)?</p>