* Update build to latest standards
* Use sed instead of patching
* Fix a linking path problem

	deleted:    base/firewall/conntrack-tools-1.4.0-slackware.patch.xz
	modified:   base/firewall/firewall.build
	deleted:    base/firewall/iptables-1.4.17-datadir.patch.xz
	new file:   base/firewall/iptables-1.4.17-ipt6libfix.patch.xz