It was possible to override the sshd_config file only with a complete
file.  This change allows the sshd_config file to be specified as a
template.

If no ListenAddress directives are specified, then sshd will list for
incoming connections at all addresses. You can alter this by specifying
the listen_addresses parameter. For example:
listen_addresses => '192.168.1.1,192.168.2.1'

This is the (old) master branch along with the fixes to the
cron file permissions that Russ made.