title: AFNetworking + JSONKit not working together
body: <p>AFNetworking + JSONKit + iOS 5.0+ = JSON parsing does not work (returns nil objects when trying to parse).</p>
  
  <p>AFNetworking + iOS 5.0+ = JSON parsing works fine.</p>
  
  <p>AFNetworking + JSONKit + iOS 4.X = JSON Parsing works</p>
  
  <p>AFNetworking + iOS 4.X = JSON Parsing doesn't work (because NSJSONSerializer is only available for iOS5.0+).</p>
  
  <p>How do I solve this problem? Snippet of code: </p>
  
  <pre><code>AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
      if([sender respondsToSelector:finish])
      {
          NSArray *responseArray = JSON;
          [sender performSelector:finish withObject:JSON];
      }
  } failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
      NSLog(@"Error retrieving: %@\n%@", error, response);
      if([sender respondsToSelector:fail])
      {
          [sender performSelector:fail];
      }
  }];
  </code></pre>