title: UITableViewCell subclass with UIImageView proper way to reuse
body: <p>I have a <code>UITableViewCell</code> subclass. I want to add a <code>UIImageView</code> as a subview, but make sure to do proper reuse so that I am not adding the subview over and over. I also want to make sure to nil out the image in <code>prepareForReuse</code>.</p>
  
  <p>What is the proper method for doing this?</p>