Client - update firebase.js to 2.2.1
Client - update firebase.js to 2.2.1

cnits/CnitSymfony,phongnhung/CnitSymfony,phongnhung/CnitSymfony,cnits/CnitSymfony,cnits/CnitSymfony,phongnhung/CnitSymfony,phongnhung/CnitSymfony,cnits/CnitSymfony,cnits/CnitSymfony,phongnhung/CnitSymfony