dracut.sh: export systemdsystemconfdir
install dracut-*.service units
systemd: add dracut.bootup(7) reference to service man pages
multipath: install native systemd service
x-initrd-rootfs.mount -> x-initrd.mount
test: change qemu param -nographic to -display none for -daemonize

qemu does not like -nographic in combination with -daemonize
use systemd*dir variables everywhere
systemd: add new timers.target and paths.target