fix(FirebaseArray): call super before this is used
fix(FirebaseArray): call super before this is used

rolandjitsu/angular-lab,rolandjitsu/angular-lab,rolandjitsu/ng2-lab,rolandjitsu/ng2-lab,rolandjitsu/angular-lab,rolandjitsu/ng2-play,rolandjitsu/ng2-play,rolandjitsu/ng2-play,rolandjitsu/ng2-lab,rolandjitsu/angular-lab,rolandjitsu/ng2-play,rolandjitsu/ng2-lab