Include machine hostname in tls hosts by default.
Include machine hostname in tls hosts by default.

Previously, starting up a labrad manager in the default configuration
would generate a self-signed cert for 'localhost', which means that
connections to the manager from remote hosts would fail unless
--tls-hosts was specified. This changes the default behavior to
also generate a cert for the default hostname given by
InetAddress.getLocalHost.getHostName.

labrad/scalabrad