CAS authentication.

CAS authentication.

See: http://code.google.com/p/django-cas/

To use CAS authentication, you must "easy_install django-cas", then add these
to your local_settings.py:

CAS_AUTHENTICATION = True
CAS_SERVER_URL     = 'https://my.cas.server.example.net/cas/'

You will probably also want to define two customization hooks:
external_person_lookup and user_needs_decoration. See:
conifer/syrup/integration.py.

git-svn-id: svn://svn.open-ils.org/ILS-Contrib/servres/trunk@969 6d9bc8c9-1ec2-4278-b937-99fde70a366f