- Add support for handling different usernames
- Add file-format support for different ports. There is so far no way to
specify a different port, but the "database" for safesh will not need to
change to accomodate it.
Note that this is NOT compatible with the naming conventions used in 1.0;
as 1.0 was available for 55 minutes yesterday before being marked as
BROKEN, I hope nobody was too much inconvenienced.
keys and starting ssh-agents, it makes it (fairly) convenient to use one key
for each host pair (authenticator and authenticatee), it avoids
authentication theft by the hosts you connect to with SSH.
