changed the name to playground wallstreet
Hover will also update tables.
Update run template style.
Add back backtest.css.map.
Fix risk_calculator bug when it reutrn 'N/A'.
Merge pull request #23 from derek-dchu/dev

Update hover effect.
Add body style in auth.scss. Update login.css and signup.css.
Move Email server and Celery broker settings into local_settings.
Merge branch 'dev'