Move constraints in module to class
Rename class constraints with double leading under scores
Rename camelcase to snakecase

Rename public functions to private
Save cv list as csv file
Add AnimeProduction, Anime model
Add CvAnime model
Register CvAnime to db
Get birthday of cv with old name
Add anime.views and add url patterns for anime
Make CATEGORY2 not to be blank
Create TestCase for crawling and scraping
Remove comments
Add test for registering cv_anime.models.CvAnime
Add url pattern for anime page