Disabl Travis CI builds for Python 3 for all versions of Django <1.5
Disabl Travis CI builds for Python 3 for all versions of Django <1.5

Django added support for Python with 1.5
(https://docs.djangoproject.com/en/1.8/releases/1.5/#python-3-support)
therefore, disable builds for Python 3 with older Django versions.

Dunedan/django-lockdown,Dunedan/django-lockdown