Enabling e-mail submission of new tasks.
Allow user to use UDAs in '_execute_safe'.
Fixing up ability for one to submit tasks via e-mail.
Allow users to specify tag names by suffixing to e-mail address with a '+tag'.
Adding an additional test verifying the ability to set task properties via 'to' header.
Adding field for storing whitelist, views for managing the whitelist, a configuration panel, and a little documentation.
Adding email whitelist handling and adding a test.
Always operate celery in eager mode if in testing.