Use debian/compat to specify debhelper compat level to allow backporting

Status Job ID Name Coverage
  Image
canceled #137661
dind allowed to fail
docker_centos-6-amd64

canceled #137662
dind allowed to fail
docker_centos-7-amd64

canceled #137651
dind allowed to fail
docker_debian-7-amd64

canceled #137655
dind allowed to fail
docker_debian-7-i386

canceled #137652
dind allowed to fail
docker_debian-8-amd64

canceled #137656
dind allowed to fail
docker_debian-8-i386

canceled #137653
dind allowed to fail
docker_debian-9-amd64

canceled #137657
dind allowed to fail
docker_debian-9-i386

canceled #137654
dind allowed to fail
docker_debian-testing-amd64

canceled #137658
dind allowed to fail
docker_debian-testing-i386

canceled #137659
dind allowed to fail
docker_fedora-25-amd64

canceled #137660
dind allowed to fail
docker_fedora-26-amd64

canceled #137663
dind allowed to fail
docker_opensuse-42_3-amd64

canceled #137664
dind allowed to fail
docker_ubuntu-14_04-amd64

canceled #137665
dind allowed to fail
docker_ubuntu-16_04-amd64

 
  Build
canceled #137672
docker linux amd64
build-centos-6-amd64

canceled #137673
docker linux amd64
build-centos-7-amd64

canceled #137666
docker linux amd64
build-debian-7-amd64

canceled #137677
docker linux amd64
build-debian-7-i386

canceled #137667
docker linux amd64
build-debian-8-amd64

canceled #137678
docker linux amd64
build-debian-8-i386

canceled #137668
docker linux amd64
build-debian-9-amd64

canceled #137679
docker linux amd64
build-debian-9-i386

canceled #137669
docker linux amd64
build-debian-testing-amd64

canceled #137680
docker linux amd64
build-debian-testing-i386

canceled #137670
docker linux amd64
build-fedora-25-amd64

canceled #137671
docker linux amd64
build-fedora-26-amd64

canceled #137681
amd64 freebsd
build-freebsd-11-amd64

canceled #137682
freebsd i386
build-freebsd-11-i386

canceled #137674
docker linux amd64
build-opensuse-42_3-amd64

canceled #137675
docker linux amd64
build-ubuntu-14_04-amd64

canceled #137676
docker linux amd64
build-ubuntu-16_04-amd64