Added an every ten minutes dir + job by .install file

 grep -q cron.tenminutes /var/spool/cron/root
  if [ $? = 1 ]
  then
          echo "*/10 * * * *  /usr/sbin/run-cron /etc/cron.tenminutes" >> /var/spool/cron/root
  fi

- add postfix as a dep