Merge pull request #14 from aarohmankad/master

Save users in database under their uid, not undefined.

Author: rwieruch

pages/signup.js

@@ -39,7 +39,7 @@ class SignUpForm extends Component {
       .doCreateUserWithEmailAndPassword(email, passwordOne)
       .then(authUser => {
         // Create a user in your own accessible Firebase Database too
-        db.doCreateUser(authUser.uid, username, email)
+        db.doCreateUser(authUser.user.uid, username, email)
           .then(() => {
             this.setState(() => ({ ...INITIAL_STATE }));
             Router.push(routes.HOME);