Added API access for AngularFire version number
Added API access for AngularFire version number

FirebaseExtended/angularfire,denisKaranja/angularfire,yoda-yoda/angularfire,bpietravalle/angularfire,cesarmarinhorj/angularfire,FirebaseExtended/angularfire,itxd/angularfire,nbr1ninrsan2/angularfire,yoda-yoda/angularfire,bpietravalle/angularfire,douglascorrea/angularfire,douglascorrea/angularfire,cesarmarinhorj/angularfire,denisKaranja/angularfire,douglascorrea/angularfire,bpietravalle/angularfire,FirebaseExtended/angularfire,itxd/angularfire,denisKaranja/angularfire,yoda-yoda/angularfire,fbentz/angularfire,nbr1ninrsan2/angularfire,jamestalmage/angularfire,jamestalmage/angularfire,cesarmarinhorj/angularfire,fbentz/angularfire,itxd/angularfire,fbentz/angularfire,nbr1ninrsan2/angularfire,jamestalmage/angularfire