[pkg-apparmor] Bug#877581: Bug#877581: Bug#877581: apparmor: Ensure Linux 4.14 does not break abstractions/nameservice

[intrigeri]

When testing stuff on 4.14, make sure you:

 - use apparmor 2.11.1

 - disable features-files= in /etc/apparmor/parser.conf (otherwise not
   only you'll be stuck to 4.13's feature set and unable to do useful
   work here, but worse you'll hit a kernel bug wrt. feature set
   pinning & network rules that totally breaks unix/netlink/etc.)