bump to v1.2.0

[liggitt]

bumps to openshift/kubernetes@4a3f9c5

this level is based on https://github.com/kubernetes/kubernetes/releases/tag/v1.2.0

it includes previous UPSTREAM commits and carries
it additionally includes all UPSTREAM commits between b1d271f and 72686b6

this PR includes a bump of cadvisor to 0.22.2

[liggitt]

[test]

[smarterclayton]

Lgtm merge at will

[liggitt]

50% test pass at https://ci.openshift.redhat.com/jenkins/job/test_pr_origin/2229/
flake on #8078

[liggitt]

50% passing at https://ci.openshift.redhat.com/jenkins/job/test_pr_origin/2231/
5 seconds waiting for failing-dc-1
Re[test]

[deads2k]

[merge]

[openshift-bot]

continuous-integration/openshift-jenkins/merge SUCCESS (https://ci.openshift.redhat.com/jenkins/job/test_pr_origin/2252/) (Image: devenv-rhel7_3758)

[openshift-bot]

Evaluated for origin merge up to 4d025a8

[liggitt]

50% passing with https://ci.openshift.redhat.com/jenkins/job/test_pr_origin/2237/

[INFO] Starting build from /tmp/openshift/test-end-to-end-docker//artifacts/stiAppConfig.json and streaming its logs...
[INFO] Waiting for test namespace build to start
[INFO] Waiting for command to finish: 'oc get -n test builds | grep -i running'...
ruby-sample-build-1   Source    Git       Failed              
[FAIL] Returning early. Command Failed 'oc get -n test builds | grep -i running'

origin logs:

E0317 13:39:00.108147   20416 manager.go:1953] Error running pod "ruby-sample-build-1-build_test(98336527-ec45-11e5-ab56-0e373b6add15)" container "sti-build": runContainer: API error (500): Cannot start container d097c0990f176d0fc22e0a50fd7f3b0918e09652866cdc1a74f8492fac01a033: [8] System error: open /sys/fs/cgroup/cpu,cpuacct/system.slice/docker-d097c0990f176d0fc22e0a50fd7f3b0918e09652866cdc1a74f8492fac01a033.scope/cpu.shares: no such file or directory

#7616
[test]

[openshift-bot]

Evaluated for origin test up to 4d025a8

[openshift-bot]

continuous-integration/openshift-jenkins/test SUCCESS (https://ci.openshift.redhat.com/jenkins/job/test_pr_origin/2252/)