Xcode 8 autolayout has ruined my project
<p>The new Xcode 8 update to use trait variations has resulted in all of my storyboard view controllers losing their autolayout integrity. It was all previously set out on the interface builder in the regular width | regular height setting (that "one size fits all" square you get by default when you make a new project). But it's now been changed to represent an iPhone 6.</p>

<p>I want to be able to change it back to the way it was before, but the "use size classes" checkbox has been removed and replaced with "use trait variations".</p>