staing/apimachinery: fix typo "perfer" to "prefer"

bump kube-openapi dep

Promote Replication Controller and Replica Set e2e tests to Conformance

CRD Conversion API Changes

fix typo

gce: move more stuff into main and refactor detect whether configure-helpers.sh was sourced

Update API-related owners files

Fix typos on cmd/kubeadm

Kubeadm alpha cmd

kubectl: fixes expose bug for workload without selectors

make gc admission set attribute namespace correctly for owners

test switching between standalone/Ingress NEG

Update import-boss restrictions - pkg/controller

fix typo

Swap cmd_test to cmd package in kubeadm/app/cmd/config_test.go

fix golint for /pkg/util/ipconfig and /pkg/util/resourcecontainer

kubelet: fix cri-o when using unix prefix 

Ensure orphan public IPs deleted

Fix retainKeys patchStrategy in apps/deployments

kubeadm: graduate the control-plane phase

Remove custom flags that were previously available per
sub-phase. Rely on the config passed to 'kubeadm init' for that.

Remove redundant functions in manifests.go.

Move the audit policy settings to the control plane phase (under
API server).

Deflake HPA tests

fix openstack provider to handle only Cinder volumes