Add bcrypt gem and has_secure_password to User model
Add users files
Allow :password to be set by mass-assignment
Keep has_secure_password validations
Add SessionsController and Sessions resource
Add #create action and login view
Add login-bar. Fix typo
Update seeds file to create users and allocate bookings to them. Fix typo in sessions_controller
Add current user method and make available to views via helper_method
Add user name to login-bar if logged in
Refactor use of flash. Add Log out link
Add nicer login/logout paths
Correct typo. Add new routes to application layout
Improve authentication specs...