With the introduction of version 2 of the SSH wire protocol,
we will need a new peer class to speak that protocol because
it will be too difficult to shoehorn a single class to speak
two protocols. We rename sshpeer.sshpeer to sshpeer.sshv1peer
to reflect the fact that there will be multiple versions of
the peer depending on the negotiated protocol.
.. api::
sshpeer.sshpeer renamed to sshpeer.sshv1peer.