- Bump version to 9

- daemon-reload is not needed in %service_add_post
Applying presets, ie enabling/disabling units, doesn't require to
update units loaded in PID1 memory. It's actually needed after and
it's done implicitly by `systemctl preset`.

- Rename the tag file used to detect when presets need to be applied
Rather than placing these tags directly under /run, let's place them
under /run/systemd/rpm. This also has the benefit to make the
workaround for bsc#1059627 no more needed.

- %service_del_preun doesn't accept -f/-n options anymore
The few package calling %service_del_preun with '-f' or '-n' option
have been fixed. These options are not needed anymore.