Update imports for new docker location
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@docker.com> (github: crosbymichael)
Correct nsenter fprintf syntax
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@docker.com> (github: crosbymichael)
Merge pull request #127 from crosbymichael/update-docker-imports

Update imports for new docker location
Merge pull request #128 from crosbymichael/fix-nsenter

Correct nsenter fprintf syntax
netlink_linux: add remove address call, refactor add address call to
share code with remove address call.

Docker-DCO-1.1-Signed-off-by: Erik Hollensbe <github@hollensbe.org> (github: erikh)
netlink/netlink_linux_test.go: tests for netlink add/rem ip

Docker-DCO-1.1-Signed-off-by: Erik Hollensbe <github@hollensbe.org> (github: erikh)
Update Makefile to include build in test target; use testing.Short() in
netlink tests.

Docker-DCO-1.1-Signed-off-by: Erik Hollensbe <github@hollensbe.org> (github: erikh)