Add a link to django-cq. (#310)
Add a link to django-cq. (#310)

* Use a mixin for common test-case code. This way we can have both
a regular channels test-case, and a transaction test-case, too.

* Adding a reference to django-cq.

django/channels,andrewgodwin/django-channels,raphael-boucher/channels,linuxlewis/channels,Krukov/channels,andrewgodwin/channels,Krukov/channels,raiderrobert/channels,Coread/channels,Coread/channels