- Re-add back 'arabic' keymap mapping as YaST needs more time than expected to
cope with this change.

- systemd.spec: don't call %systemd_{pre,post} on units shipped by the main
package since they don't have any effect during installation (systemctl is not
yet installed when %pre script is executed). This is actually the reason why
it's handled by the %%posttrans scripts of systemd-presets-common-SUSE.

- kbd-model-map.legacy: 'arabic' vc keymap has been renamed 'ara' (bsc#1210702)

- add some green to systemd-boot menu

- kbd-model-map.legacy: drop some entries no longer needed
by YaST (related to bsc#1194609)

- tmpfiles-suse.conf (jsc#PED-3144):
- Remove lastlog entry, replaced by lastlog2
- Remove btmp entry, not Y2038 safe