Add debug output to development environment
Add RESTful routes and show.html.erb for Users resource
Add Factory Girl gem to GEMFILE
Speed up Bcrypt's hash function and add FactoryGirl for easier data generation
Add Gravatar and change example user
Add sidebar to user profile
Add tests for User signup
Add and style signup form for a new User
Add strong parameters for User resource
Set up signup failure procedure for the User resource
Add flash messages and put the code in a partial
Update gravatar helper