title: Interface Builder "locking" object to screen edges
body: <p>I've read some tutorials on using AutoLayout but I just can't seem to figure out how to achieve something that I feel should be incredibly simple. I'm designing an application for both 3.5 and 4 inch iPhone/iPod Touch screens. It's a simple tab bar application with a UITableView filling up the entirety of each tab, like so:</p>
  
  <p><img src="https://i.stack.imgur.com/jYD5a.png" alt="Interface Builder"></p>
  
  <p>I would like for the UITableView to lock to the edges of the screen, regardless of whether the screen is 3.5 or 4 inches. What I currently have works fine on 4-inch screens, but on 3.5 the UITableView extends beyond the width of the screen.</p>
  
  <p>I've tried reading some AutoLayout tutorials as well as fiddling with Interface Builder constraints, but without success. I would appreciate any help you can provide.</p>