Added Static Pages controller (with home page)
Intro to sass, named routes, partials

- Bootstrap used for CSS
- users controller generated with signup method.
User model created (name, email)

- intro to migration
- encrypted password (password_digest) with authentication (bcrypt-ruby)
- password & password_confirmation... virtual fields
- validation for user accessor fields
Finish sign-up page

- mixins introduced in sass
- new vs create actions in users controller