Class based views

[webknjaz]

1. Read about class-based views in docs
   • [ ] intro https://docs.djangoproject.com/en/1.10/topics/class-based-views/intro/
   • [ ] advanced https://docs.djangoproject.com/en/1.10/topics/class-based-views/
2. Rewrite yours

p.s - don't forget that tests MUST be done before you start this task