title: Slide in from the right when popping a view controller from a navigation stack
body: <p>Right now when I pop a custom view controller off the navigation controller stack (with animated:YES) it does the usual slide out to the right.  I want to have the animation look the same as when you push a controller (slide in from the right), but have the effect of still being a pop not a push.  How should I start my quest?  Should this be done in the viewWillAppear?</p>