Added Devise gem
Added migration and updated user model to include tracking Updated app to require login
Updated nav to include user, sign out
Updated views to hide new, options from non-admin users
Updated test helper to include Devise setup / login
Added Devise gem Added migration and updated user model to include tracking Updated app to require login Updated nav to include user, sign out Updated views to hide new, options from non-admin users Updated test helper to include Devise setup / login