Updating for Django 1.5, changing to use get_user_model to allow custom user models
Creating a settings.py to allow default settings to be accessed by django's tests
Adding temp file entries and test_config.py to .gitignore
Adding smarter defaults for tests and fixing command line prompt

Smarter defaults:
Defaults were hard to import in test_config since you'd need to define ALL of
them as-written. Updated so the defaults are set, and overridden with
test_config.py (a file ignored by .gitignore, though I do not recommend
storing a CAS password in here anyhow)

Fixing command-line prompt:
It was awkward when prompted for your CAS password, not knowing where your
password is being authenticated against. I added the host so at least
you can be educated as to which server you're shooting your CAS password to
Additional fixes to tests as well as making names of files make more sense
Cleaning up imports; tests work now!
Adding imports from the proper place: django_cas.settings