removed test requirement for python 2.7 and django 1.8

Created by: msb

Related PRs: https://github.com/uisautomation/iar-backend/pull/79 https://github.com/uisautomation/lookupproxy/pull/22 https://github.com/uisautomation/sms-webapp/pull/57

closes: https://github.com/uisautomation/docs/issues/12