[configs/releng] Fix EFI shells URLs

FS#36780

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
[configs/releng] explicit set 'Storage=volatile' for journald

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
Remove TODO file

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
[archiso] mkarchiso: use arch-install-scripts instead of own functions

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
prepare release

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
[archiso] mkarchiso: init cmd: test for file instead of directory

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
[archiso] changes for syslinux 6

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
Merge remote-tracking branch 'upstream/master'
Modify iso-to-drive script for new syslinux changes

Untested. May or may not work.
Merge remote-tracking branch 'origin/master'
Add alsa-utils, zenity to mainpackages