title: UIWebView.loading returns false
body: <p>With swift using the following code:</p>
  
  <pre><code>super.viewDidLoad()
  let webView = UIWebView(frame: self.view.bounds)
  view.addSubview(webView)
  
  let URL = NSURL(string: "http://www.google.com")
  webView.loadRequest(NSURLRequest(URL: URL!))
  println(webView.loading)
  </code></pre>
  
  <p>It prints false and the screen is blank. How is this resolved?</p>