Added tests of eel creation for public, lvem, and internal users. EEL access is based on event access.

Must create guardian GroupObjectPermission objects and auth.Permission objects on the fly in test setUp, *because* django creates content type id's in an unpredictable manner when it runs syncdb for the first time. Since the permissions infrastructure depends on these content type ids, you can't use dumped objects for testing.

New features for testing the auth/permissions infrastructure. There is a rudimentary unit test, as well as a management command to create fixtures for the test.