title: openURL and open in IOS 9 / 10
body: <pre><code>-UIApplication.shared.openURL(url)
  -UIApplicartion.shared.open(url,options: [:],completionHandler: nil)
  </code></pre>
  
  <p>Can I use these two options in iOS9 and iOS10?</p>
  
  <p>Is <code>UIApplication.shared.openURL(url)</code> supported in iOS9 and/or iOS10?</p>