title: UIImageView "bounce in" animation
body: <p>Can anyone guide me in the right direction on figuring out how to animate a UIImageView like so:</p>
  
  <p>On the initial load of the app, a UIImageView will come in from the top of the screen and then bounce (up and down) into the bottom a couple times before settling at the bottom.</p>
  
  <p>I know how to animate it where it just moves along the Y axis, but how to do the slight bounce effect at the end?</p>
  
  <p>Thanks!</p>