Update urls.py

Update urls.py to Django 1.5/1.6
Updated webhook processing to be compatible with Django 1.6.
Merge pull request #31 from erikcw/webhooks-fix

Updated webhook processing to be compatible with Django 1.6.
Merge pull request #29 from thrashr888/patch-1

Update urls.py
Version number bump
Merge remote-tracking branch 'django-zebra-master/master'