title: SignalR doesn't work with custom serializer
body: <p>I'm trying to configure signalr to send JSON object with lower case members. Currently I'm configuring with a custom ContractResolver, and have put this in my startup code:</p>
  
  <pre><code>var serializer = new JsonNetSerializer(new JsonSerializerSettings
  {
      ContractResolver = new CamelCasePropertyNamesContractResolver()
  });
  GlobalHost.DependencyResolver.Register(typeof (IJsonSerializer), () =&gt; serializer);
  </code></pre>
  
  <p>However, no javascript calls are received when it is configured like this. Any ideas what's wrong? Thanks</p>