title: Open Wifi Settings by "prefs:root=WIFI" failed in iOS 10
body: <p>I was using prefs:root=WIFI url scheme in my app with prefs entered in info.plist to open directly the iOS settings application in Wi-Fi settings and it was working great on iOS 9 but it does not work anymore on iOS 10.</p>
  
  <p>Does anyone know if this is just a regression in the first developer preview or the way to open Wi-Fi settings has changed in iOS 10 or it is not allowed anymore?</p>