add Model User and add Validation
Make a basic User model with secure password
add Test for downcasing the email
Fix email regex
add user profile page and tests
add gravatar on userpage 7.1.4
add a user signup form 7.4
add flash message for user signup
add SSL in production
SET config.assets.compile = true
precompile assets for heroku
Finish exercise Chapter 7
Finish sign in