title: Retrieving all 4 coordinates of a rotated UIImageView
body: <p>How does one get the 4 coordinates for a UIImageView?</p>
  
  <p>I know the CGRect can be obtained and the origin.x and origin.y, but how can all 4 corners be found?</p>
  
  <p>EDIT: I am rotating the UIImageViews, thats why I asked :P</p>