Hub calls should fail if request's response is 3xx redirect

[halter73]

The client library should treat requests with responses with redirect codes (e.g. 302/301) as failed.

This is problematic in situations where browser sessions expire but the client library is still trying to call back -- e.g. via timer

setInterval(function() { // trivial example
     $.connection.myHub.server.getLatest().done(function(someResp) {
          updateSomething(someResp);
     }).fail(function() { 
          alert('bang'); 
     });
}, 90000); // 90 seconds

The observed behavior is that the request is made to the server, the server responds 302, the browser then does the redirect and requests the login page, but neither done() or fail() are called.

#2106

[gustavo-armenta]

Ran automated tests "Response redirection facts"