title: Pushsharp 4.0 with Firebase
body: <p>After reading lot of post I could not find a complete example how to send GCM push notifications using Pushsharp 4.0 with Firebase. Lot of examples with PushSharp are using the old Google cloud messaging, not Firebase and/or the old PushSharp version.</p>
  
  <p>Does anyone have an example of a stable and working code for sending GCM push notifications using PushSharp 4.0 with Firebase ?</p>