Update changelog before release
Update changelog before release

rtablada/emberfire,leifcr/emberfire,IsaiahJTurner/emberfire,FirebaseExtended/emberfire,FirebaseExtended/emberfire,MattMSumner/emberfire,FirebaseExtended/emberfire,FirebaseExtended/emberfire,IsaiahJTurner/emberfire,MattMSumner/emberfire,rtablada/emberfire,leifcr/emberfire