Add debug box information to the site layout
Test a stub user show page (with factories)
Add Gravatar image and sidebar to show users
Add a sign up form
Add a welcome message when a user successful sign up
Test error message after a sign up with invalid information
helper gravatar_for takes an optional size parameter
chande the error message for password digest cant be blank (remove digest text on message)
Use  content_tag to show flash messages
Add SSL in production