Personals are now just private messages between two people (which
sometimes manifests as a private message with one recipient). The
new message type on the send path is 'private'. Note that the receive
path still has 'personal' and 'huddle' message types.
(imported from commit 97a438ef5c0b3db4eb3e6db674ea38a081265dd3)
This happens sometimes (especially when our server is restarting), and
isn't a _real_ problem -- it's much more important that we have a
completely reliable test that we can put a Nagios alert against.
(imported from commit 0add0b3dfc5447307014bbb9137366bd7141ade0)
