title: Unity check internet connection availability
body: <p>I am porting our game to Unity, and need some help regarding internet connectivity check in Unity.
  Official Unity Documentation says 'do not use Application.internetReachability.
  So i am confused which code will work here.
  Didn't find any prominent solution in any forum.
  I want to check whether wi-fi or GPRS is on or not which should work for iOS and Android.
  Thanks in advance.</p>