Use self.settings() context manager in tests
Use self.settings() context manager in tests

Wow. This is so much easier than...

- save original setting value
- set value for test
- do stuff with test value
- value back to original value

PSU-OIT-ARC/django-arcutils,wylee/django-arcutils,PSU-OIT-ARC/django-arcutils,wylee/django-arcutils