title: Setup for Ionic Cloud using FCM now that GCM not available for new projects
body: <p>I noticed while trying to enable GCM that it has been replaced with FCM.  So after some searching I found that <code>phonegap-plugin-push</code> has a version 2.x for use with FCM, which I installed using the last commit hash, but I don't know how to enable FCM on the Google Cloud Platform for an Ionic application.  Do you use web setup?  Seems to only talk about Google Chrome in the description, and then it explains how to add Firebase to an Android application, but I'm trying to do this the Ionic framework.  </p>
  
  <p>Has anyone created a new project and been forced to use FCM, and could provide some help?  It seems to be the only missing piece, since I appear to receive a token on application startup after following the docs and adding the Ionic Cloud initialization to a config block, and then registering the token in a run block, but no notifications sent from Ionic Cloud's dashboard are received or caught in a $scope event.</p>