title: pathForResource inDirectory problem
body: <p>i want to load html file from Resources in WebView.</p>
  
  <p>in Resources i have:</p>
  
  <p>test.html</p>
  
  <p>testfolder->test.html</p>
  
  <p>this code works perfectly:</p>
  
  <pre><code>[[webview1 mainFrame] loadRequest:
   [NSURLRequest requestWithURL:
    [NSURL fileURLWithPath:
     [[NSBundle mainBundle] pathForResource:@"test" ofType:@"html"]]]];
  </code></pre>
  
  <p>and this one - crash the app (SIGABRT):</p>
  
  <pre><code>[[webview1 mainFrame] loadRequest:
   [NSURLRequest requestWithURL:
    [NSURL fileURLWithPath:
     [[NSBundle mainBundle] pathForResource:@"test" ofType:@"html"  inDirectory:@"testfolder" ]]]];
  </code></pre>
  
  <p>How can i get files from folders?</p>