Device for User

https://github.com/heartcombo/devise

I need login, join with User table

- Role
   - https://github.com/heartcombo/devise/wiki/How-To:-Add-a-default-role-to-a-User
   - https://github.com/heartcombo/devise/wiki/How-To:-Add-an-Admin-Role
- User
   - ```email, lockable, history```  