Use Django 1.7 enabled django-nose version

We'll have to run against that until django-nose gets proper 1.7
support.

requirements.txt

 django-dynamic-fixture>=1.7,<1.8
 mock>=1.0.1,<1.1
 coverage>=3.6,<3.7
-django-nose>=1.2,<1.3
+#django-nose>=1.2,<1.3
+# Need to run against this until django-nose comes with support for Django 1.7
+# https://github.com/django-nose/django-nose/pull/161/
+https://github.com/brad/django-nose/archive/django_1.7.zip#egg=django-nose
+
 spec>=0.11.1,<0.12
 WebTest>=2.0,<2.1
 django-webtest>=1.7,<1.8