Mailman conversion for mailing lists

If you’re on any of the mailing lists, I’m converting them over from bestserv to Mailman.  I’ve done bugs@, commits@, hammer@, and test@ so far, and I’ll move the old archives over to the same format as soon as I find an actual mbox file with the old messages in it.  The remaining lists should be tomorrow.

(If you got a note tonight from a list you were sure you were unsubscribed from, that was my fault; sorry!  I didn’t understand the format of the bestserv user lists.)