Add error display box to bottom of page

*And styling
Define resource :users instead of explicit get verbs
Add  gem
Add a show view for user

*Define show in controller
*Create view
*Add spec using a FactoryGirl user
Configure bcrypt to speed up tests
Add helper to determine the gravatar url
Remove email address from view
Add sidebar to show view

*And styling
Add form to create a new user

*Add form styling
*Create a new user instance in the controller
*Add specs
Display any error messages during user signup

*Add styling
*Create parital to display all errors
*Display partial on new user view
Finish user signup logic

*Implement strong parameters for user creation
*Redirect to the user show view after signup
Display a flash message when the user signs up
Activate SSL in production environment