There's two situations where we're missing info.
One is we get a 'channel_closed' event (but there's no 'channel_open')
The other is a balance_snapshot arrives with information about accounts
that doesn't match what's already on disk. (For some of these cases, we
may be missing 'channel_open' events..)
In the easy case (no channel_open missing), we just figure out what the
When we print events out, we need to know the account name. This makes
our lookup a lot easier, since we just pull it out from the database
every time we query for these.
niftynei