Squashed 'vendor/src/github.com/docker/libcontainer/' content from commit 8f74c29

git-subtree-dir: vendor/src/github.com/docker/libcontainer
git-subtree-split: 8f74c29bc59d7f0b4fc6cfd6fa59f01532be9f9f
Merge commit '54abddbe654107513f83201f00457206f64a6767' as 'vendor/src/github.com/docker/libcontainer'
Update netlink package location in libcontainer
Merge pull request #188 from ncdc/vendor-libcontainer

Merged by openshift-bot