Add Devise
Add devise views
Initialize devise
Add correct routes for devise
Fix sign in / sign out / sign_up routing links
Remove users prefix from devise routes paths
Fix spec helper login method
fix sessions spec
Remove unnecessary validations from User
Add user name to devise parameter sanitizers
Add user name to devise forms
Fix User request specs
Fix period spec
Fix entry spec
Replace sign in / sign out / sign_up paths
Return default devise routes
Fix specs
Fix sign in form
Add line break before devise links
Fix sign up form