title: NSLayoutConstraints issue
body: <p>I've disabled autolayout from xib. But I'm facing this issue. Even I'm not adding any subview programmatically, and I'm having 3 element in this view: </p>
  
  <p><strong>1. UIImageView 2. UIButton 3. UIButton.</strong> </p>
  
  <p>I'm suffering for the last 3 days but I'm not able to find out the error. So please any one help me. Your help will be appreciated.</p>
  
  <pre><code>NSLog(@"Constratins %@",[self.view constraints]);
  Constratins (
  )
  
  
  View hierarchy unprepared for constraint.
      Constraint: &lt;NSAutoresizingMaskLayoutConstraint:0x294d9de0 h=-&amp;- v=-&amp;- UIViewControllerWrapperView:0x2d91c410.midY == UINavigationTransitionView:0xdd2aa40.midY&gt;
      Container hierarchy: 
  &lt;UINavigationTransitionView: 0xdd2aa40; frame = (0 0; 1024 768); clipsToBounds = YES; autoresize = W+H; layer = &lt;CALayer: 0xdd2aca0&gt;&gt;
     | &lt;UIViewControllerWrapperView: 0x2a72b4d0; frame = (0 0; 1024 768); layer = &lt;CALayer: 0x2a72ab40&gt;&gt;
     |    | &lt;UIView: 0x2d869b30; frame = (0 0; 1024 768); gestureRecognizers = &lt;NSArray: 0x2d8852e0&gt;; layer = &lt;CALayer: 0x2d86b510&gt;&gt;
     |    |    | &lt;MyImageView: 0x2d891040; baseClass = UIImageView; frame = (0 0; 1024 748); userInteractionEnabled = NO; layer = &lt;CALayer: 0x2d8699f0&gt;&gt; - (null)
     |    |    | &lt;UIButton: 0x2d88c460; frame = (968 14; 40 40); hidden = YES; opaque = NO; layer = &lt;CALayer: 0x2d88c550&gt;&gt;
     |    |    | &lt;UIButton: 0x2d88a220; frame = (963 9; 40 44); opaque = NO; layer = &lt;CALayer: 0x2d88a310&gt;&gt;
      View not found in container hierarchy: &lt;UIViewControllerWrapperView: 0x2d91c410; frame = (0 0; 1024 768); autoresize = W+H; layer = &lt;CALayer: 0x2d91c490&gt;&gt;
      That view's superview: NO SUPERVIEW
  </code></pre>