* iptables: update page
* iptables-{restore,save}: add page
* ip6tables, ip6tables-{restore,save}: add alias page
* iptables-save: remove trailing whitespace
* iptables: update page
* iptables-{restore,save}: add page
* ip6tables, ip6tables-{restore,save}: add alias page
* iptables-save: remove trailing whitespace