Updated comments and cleaned up code
Updated comments and cleaned up code

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