#31 Add expire statement

[Alon Bar-Lev]

Hello,

It will be great if an expire statement will be added to a
command:

client http accept expire 2006-04-02 10:23:44

This will allow to allow tests without forgeting remove the
new statements.

I don't mean that firehol will remove this statement
dynamically at runtime (unless iptables supports it), but it
will not add it to iptables at next start.

An administrator that want to refresh all expired will use
cron task to start firehol every day...

Thanks!
Alon Bar-Lev.