Now one can create a group, use it in a rule and then delete every entry
from the group. (The firewallrule then will be displayed yellow and
disabled).
This has been messed up a lot because there were multiple
files which indicated that a reload is needed; shell commands
were used to create and remove the indicator file; some
functions were duplicated.
1) New textfile for DMZ rules
2) Tablegroups are shown on firewall site
3) Option in firewall-options to disable emtpy ruletables
4) Infotext on P2P-Block site