nftables: bump to version 0.4

Also add hash file.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/nftables/nftables.hash

@@ -0,0 +1,2 @@
+# From http://www.netfilter.org/projects/nftables/downloads.html#nftables-0.4
+sha1	c557c710510c59e4280d271e5b7232af7ba3fbb7	nftables-0.4.tar.bz2

package/nftables/nftables.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-NFTABLES_VERSION = 0.3
+NFTABLES_VERSION = 0.4
 NFTABLES_SOURCE = nftables-$(NFTABLES_VERSION).tar.bz2
 NFTABLES_SITE = http://www.netfilter.org/projects/nftables/files
 NFTABLES_DEPENDENCIES = gmp libmnl libnftnl readline host-bison host-flex \