changed ttyX run to avoid controlling tty errors

changed ttyX run and finish commands to avoid these warnings
   in /var/log/auth
Jan 21 19:11:08 master agetty[269]: /dev/tty6: cannot get controlling tty: Operation not permitted
Jan 21 19:11:09 master agetty[269]: /dev/tty6: cannot get controlling tty: Operation not permitted
Jan 21 19:11:09 master agetty[269]: /dev/tty6: cannot set process group: Inappropriate ioctl for device
changed runit to use /var/run/runit instead of /etc/runit while running
added runit-startx
changed X tty to 7