iptables: bump version

- bump version to 1.4.2
- add uninstall target

Patch by Olaf Rempel <razzor@kopf-tisch.de>

package/iptables/iptables.mk

@@ -3,7 +3,7 @@
 # iptables
 #
 #############################################################
-IPTABLES_VERSION = 1.4.1
+IPTABLES_VERSION = 1.4.2
 IPTABLES_SOURCE = iptables-$(IPTABLES_VERSION).tar.bz2
 IPTABLES_SITE = http://ftp.netfilter.org/pub/iptables
 
@@ -16,3 +16,10 @@ IPTABLES_CONFIGURE_OPT = --with-kernel=$(LINUX_HEADERS_DIR)
 IPTABLES_MAKE_OPT = GLIB_GENMARSHAL=$(HOST_GLIB)/bin/glib-genmarshal GLIB_MKENUMS=$(HOST_GLIB)/bin/glib-mkenums
 
 $(eval $(call AUTOTARGETS,package,iptables))
+
+$(IPTABLES_TARGET_UNINSTALL):
+	$(call MESSAGE,"Uninstalling")
+	rm -f $(TARGET_DIR)/usr/bin/iptables-xml
+	rm -f $(TARGET_DIR)/usr/sbin/iptables* $(TARGET_DIR)/usr/sbin/ip6tables*
+	rm -rf $(TARGET_DIR)/usr/lib/xtables
+	rm -f $(IPTABLES_TARGET_INSTALL_TARGET)