rails g model User name:string email:string
rake db:migrate
a few simple unit tests for user model
more unit tests
rails g migration add_index_to_users_email
make sure emails are properly downcased before being saved
rails g migration add_password_digest_to_users password_digest:string
code and test for password
has_secure_password!
add debug info
add factory_girl
write minimal test for user profile page
add gravatar to user profile page
write spec for signup page
signup form
add flash and more tests
fix a typo
remove .app/mdels/.keep