• FIXED: Swagger UI "Try it out!" should now work with Django login
• FIXED: callable default values on serializer fields will now be properly called (#24, #25)
• IMPROVED: updated swagger-ui to version 3.8.0
• IMPROVED: PrimaryKeyRelatedField and SlugRelatedField will now have
  appropriate types based on the related model (#26 )
• IMPROVED: mock views will now have a bound request even with public=False (#23)