title: UIWebViewDeletate shouldStartLoadWithRequest: gets called multiple times with redirection requests
body: <p>I'm using a UIWebView to display html pages which contain links, some of the links are to local files (file://...) and some are to remote web site (http://... ).</p>
  
  <p>For some sites shouldStartLoadWithRequest gets called twice, for example if the html contains: </p>
  
  <pre><code>&lt;a href="http://www.zagat.com/Verticals/PropertyDetails.aspx?VID=8&amp;R=36121"&gt;
  </code></pre>
  
  <p>Then shouldStartLoadWithRequest gets called as expected with a request of </p>
  
  <pre><code>"www.zagat.com/Verticals/PropertyDetails.aspx?VID=8&amp;R=36121"
  </code></pre>
  
  <p>But then it gets called again but this time with a redirection request of </p>
  
  <pre><code>"http://zagat.mobi/"
  </code></pre>
  
  <p>Is it possible to get feedback from the UIWebView when this is happening?</p>