Added simple login
Merge branch 'master' into firebase-v1
Merge branch 'firebase-v1' of github.com:katfang/firechat-swift into firebase-v1
Merging in firebase-v1
Adding Simple Login to bridging and adding usernames on top of bubbles and scorlling to bottom automatically.
Merge branch 'master' into firebase-v1
Merging master into firebase-v1