updated demo project to work with django 1.6

Updated the manage.py file as per https://docs.djangoproject.com/en/1.4/releases/1.4/#updated-default-project-layout-and-manage-py

urls changes since defaults has been deprecated in 1.6 https://docs.djangoproject.com/en/1.6/internals/deprecation/#id1

These changes break compatibility in 1.3 but that is unsupported. Should work >= 1.4