update to latest upstream version

package/iptables/Makefile

@@ -4,9 +4,9 @@
 include ${TOPDIR}/rules.mk
 
 PKG_NAME:=		iptables
-PKG_VERSION:=		1.4.5
-PKG_RELEASE:=		2
-PKG_MD5SUM:=		44f13990132c20299c1994cd6f425140
+PKG_VERSION:=		1.4.6
+PKG_RELEASE:=		1
+PKG_MD5SUM:=		c67cf30e281a924def6426be0973df56
 PKG_DESCR:=		The netfilter firewalling software
 PKG_SECTION:=		net
 PKG_URL:=		http://www.netfilter.org