title: UIScrollView contentSize not working
body: <p>I put a <code>UIScrollView</code> in my nib's <code>view</code>, and linked it to a an <code>IBOutlet</code> property.</p>
  
  <p>Now, when I do this in my <code>viewDidLoad</code> method, it seems to have no effect on the <code>contentSize</code>:</p>
  
  <pre><code>self.sv.backgroundColor = [UIColor yellowColor]; // this works
  CGSize size =  CGSizeMake(1000.0, 1000.0); 
  [self.sv setContentSize:size]; // this does not
  </code></pre>
  
  <p>It behaves as if the <code>contentSize</code> was the same as the frame. What's going on?
  This started working when I turned off AutoLayout. Why?</p>