Add `dddp.tests` test suite, just running doctests for now.
Add `dddp.tests` test suite, just running doctests for now.

django-ddp/django-ddp,commoncode/django-ddp,django-ddp/django-ddp,commoncode/django-ddp,django-ddp/django-ddp,commoncode/django-ddp,commoncode/django-ddp,django-ddp/django-ddp