title: How to slide / swipe / screen edge swipe between two UIViews in iOS 7
body: <p>I have two UIViews - UIView1 and UIView2 in one UIViewController, both same size (about half screen) and at same location with UIView1 visible and on top of UIView2.</p>
  
  <p>I want to be able to swipe UIView1 left to right to display UIView2, with transition effect smooth like Safari back / forward swipe in iPhone.</p>
  
  <p>Also on reverse I want to be able to swipe UIView2 right to left to display UIView1, with transition effect smooth like Safari back / forward swipe in iPhone.</p>
  
  <p>How do I do this? I saw several examples for the complete UIViewcontroller (using push segue), but couldn't figure  just UIViews.</p>