Simplify the tox.ini (use the generative environment list from tox-1.7: https://testrun.org/tox/latest/config.html#generative-envlist).
Simplify the tox.ini (use the generative environment list from tox-1.7: https://testrun.org/tox/latest/config.html#generative-envlist).

CloudNcodeInc/django-celery,CloudNcodeInc/django-celery,CloudNcodeInc/django-celery