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).

Amanit/django-celery,tkanemoto/django-celery,iris-edu-int/django-celery,axiom-data-science/django-celery,georgewhewell/django-celery,axiom-data-science/django-celery,tkanemoto/django-celery,georgewhewell/django-celery,kanemra/django-celery,iris-edu-int/django-celery,iris-edu-int/django-celery,celery/django-celery,georgewhewell/django-celery,celery/django-celery,kanemra/django-celery,Amanit/django-celery,kanemra/django-celery,tkanemoto/django-celery,celery/django-celery,Amanit/django-celery,axiom-data-science/django-celery