title: Xcode 6 auto layout issue (or bug)
body: <p>When i switched from Xcode 5 to Xcode 6 this problem came along:
  Setting layout constraints for a UIView to be:</p>
  
  <p>Trailing space to superview: 0
  Leading space to superview: 0</p>
  
  <p>I get this
  <img src="https://i.stack.imgur.com/NEcEM.png" alt="enter image description here">
  In order to set the view correctly in order to fill up the entire screen I have to put:</p>
  
  <p>Trailing space to superview: -16
  Leading space to superview: -16</p>
  
  <p><img src="https://i.stack.imgur.com/Asx6u.png" alt="enter image description here"></p>
  
  <p>And this would not be a huge problem if it worked on all devices, but it doesn't.
  All iPhones up to 6 work like this. iPhone 6 plus however needs different constraints in order to fill the superview (the whole screen in my case). So does the iPad.</p>
  
  <p>Is there any method to set up the views to fill up the entire superview without fiddling with e every single device configurations?</p>
  
  <p>Vertical constraints work as usual, only horizontal ones are weird.</p>
  
  <p>Please note that working with old storyboards in Xcode 6 works like a charm, but the new ones are broken.</p>