Fix separator display between name and logout in navbar.
Implement sign out functionality.
Bug fix.  Missing closing bracket for script tag for firebase simple login.
Fix bug where listings address wasn't displaying.
Add spot name and address to addReview page.
Add guard to prevent non-logged in users from adding a review.  Will need to also implement in firebase auth rules.
Add user info storage to user info service.
Add display name to signup page.
Add display name to user data in firebase.
Retrieve user object from datastore on login.