Merge branch 'master' of git://blackhole.kfki.hu/nf-next

Jozsef Kadlecsik says:

====================
- Introduction of new commands and thus protocol version 7. The
  new commands makes possible to eliminate the getsockopt interface
  of ipset and use solely netlink to communicate with the kernel.
  Due to the strict attribute checking both in user/kernel space,
  a new protocol number was introduced. Both the kernel/userspace is
  fully backward compatible.
- Make invalid MAC address checks consisten, from Stefano Brivio.
  The patch depends on the next one.
- Allow matching on destination MAC address for mac and ipmac sets,
  also from Stefano Brivio.
====================

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>