Add some debug information to the site layout
Add a Users resource to the routes file
Show user information
Test the user show page
Add the 'factory_girl_rails' gem to our Gemfile

$ bundle install
Use user factories

Use user factories to define user objects and insert them in the
database.
Add a Gravatar to the user profile
Test for user signup
Make a form for signing up users
Apply Bootstrap CSS settings on signup form
Implement the create action

Use strong parameters in the create action.
Handle failed user creation

Add helpful error messages to indicate the problems that prevented
successful registration.
Handle successful user signup with flash