Make the mailing list for a group optional
Review Request #66 — Created June 16, 2007 and submitted
A few people have requested that groups could exist without a mailing list to send to, and have it so relevant review requests and reviews get e-mailed to any individual subscribers instead of to the list. This change (hopefully) does that. It should be a fairly self-explanatory patch.
Fixed up unit tests for new API and ran them. The actual code path for groups without mailing lists hasn't been tested, since I'm not sure how to modify the fixture to add relevant test data.