title: Swipes not being detected (Swift/iOS9)
body: <p>In my <code>viewDidLoad</code>:</p>
  
  <pre><code>let swipeLeft = UISwipeGestureRecognizer(target: self, action: Selector("leftSwiped"))
          swipeLeft.direction = .Left
          self.view.addGestureRecognizer(swipeLeft
  </code></pre>
  
  <h2>)</h2>
  
  <pre><code>func leftSwiped()
      {
          print("here")
      }
  </code></pre>
  
  <p>"here" is never printed. I tried looking at other guides, but the core of the code is the same that I have. I don't think I'm supposed to subclass anything. Could I get some help on this?</p>