Changed models to like/dislike based and migrated
Changed serializer to work with new rating model.
Fixed a pep8 error.
Setup forms to work with new rating model.
Changed detail to work with the new rating system.
Changed popup to work with new rating model.
Modified admin.py to work with new rating model.
Removed times_rated from serializer
Fixed flake8 errors.
Corrected formatting of times_rated.