title: Get friendlist from Facebook with FBRequest
body: <p>I'm trying to read friendlist from Facebook and show in TableView but I haven't any reaction. My delegate's peace of code:</p>
  
  <pre><code>    if (![facebook isSessionValid]) {
      NSArray *permissions = [[NSArray alloc] initWithObjects:
                      @"user_location",
                      @"friends_location",
                      @"read_friendlists", 
                      nil]; 
      [facebook authorize:permissions];
      [permissions release];
      }
      [facebook requestWithGraphPath:@"me/friends" andDelegate:self];
  </code></pre>
  
  <p><code>request:didLoad</code> method look like:</p>
  
  <pre><code>-(void)request:(FBRequest *)request didLoad:(id)result {
  _contacts = result;
  }
  </code></pre>
  
  <p><code>contacts</code> it's my instance NSArray what I want to fill with contacts from Facebook. In <code>tableViewController</code> I've done next thing:</p>
  
  <pre><code>    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
      cell.textLabel.text = [appDelegate.contacts objectAtIndex:indexPath.row];
  </code></pre>
  
  <p>In result I have not any in my tableView. I am interested in what I am doing wrong? I'm generally do in the right way?</p>