title: UIButton added to UICollectionViewCell doesn't respond in iOS 7.1 but works on iOS 8.0
body: <p>I have a UICollectionView and I have a custom cell with a reusable view. I have a button inside the cell and it works fine on iOS 8.0 but doesn't work on iOS 7.1. I tried bringSubViewToFront and that didn't work. I am not sure why it would work on iOS 8.0 and not on 7.1 </p>
  
  <p>Update:</p>
  
  <p>Trying the same with Xcode 5 had the issue resolved. But going back to Xcode 6 I have the issue.</p>