title: backed layer subclassed NSImageView setFrameRotation not working
body: <p>on backed layer subclassed NSImageView method</p>
  
  <pre><code>- (void)setFrameRotation:(CGFloat)angle;
  </code></pre>
  
  <p>not working! So if its a backed layer, i should be using...</p>
  
  <pre><code>CATransform3DMakeRotation (CGFloat angle, CGFloat x, CGFloat y, CGFloat z)
  </code></pre>
  
  <p>ok, it is working fine but the view clips the layer. So when i make it a non-backed layer (means setWantsLayer=NO), setFrameRotation works. But this time i'm not able to rotate the image around the anchor point. It rotates around (0,0). So how am i able to rotate the view around the anchor point, not the layer?</p>
  
  <p>Thanks.</p>