Fixing URL bug to allow users to have only one URL rule.

Currently Django 1.6 does not allow developers to specify only one URL within the urls.py file. The app_name and namespace attributes don't exist and an exception is thrown if urls.py only contains one URL.

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Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/wsgiref/handlers.py", line 85, in run
    self.result = application(self.environ, self.start_response)
  File "/Users/dmyerscough/nagios-api-env/lib/python2.7/site-packages/django/contrib/staticfiles/handlers.py", line 67, in __call__
    return self.application(environ, start_response)
  File "/Users/dmyerscough/nagios-api-env/lib/python2.7/site-packages/django/core/handlers/wsgi.py", line 206, in __call__
    response = self.get_response(request)
  File "/Users/dmyerscough/nagios-api-env/lib/python2.7/site-packages/django/core/handlers/base.py", line 148, in get_response
    response = debug.technical_404_response(request, e)
  File "/Users/dmyerscough/nagios-api-env/lib/python2.7/site-packages/django/views/debug.py", line 471, in technical_404_response
    and tried[0][0].app_name == tried[0][0].namespace == 'admin')):
AttributeError: 'RegexURLPattern' object has no attribute 'app_name'

==

Steps to reproduce this:-

1 - Edit the urls.py file and include only one URL rule

urlpatterns = patterns('',
    url(r'^test/', 'nagios_api.views.comments', name='home'),

2 - Connect to the Django web server and the error above will be reproduced.