Remove client impersonantion from ClusterRole creation

Update comments in Horizontal Pod Autoscaler Controller.

Implement fmt.Stringer on rest.Config to sanitize sensitive fields

Cleanup a TODO in preemption logic to reflect the current state

CSI topology e2e - fix space in Feature tag

Bump kubectl in addon-manager

Remove swagger 1.2, swagger-ui

remove repetitive word in annotation

Improve pkg/kubelet/cadvisor package

use host shellcheck binary when possible

Kubeadm: Use fmt.Println instead of fmt.Printf

Bump Docker supported version to 18.09

Fix the broken for loop including goroutine

It's very easy to add glog.Info(config) calls for debugging (or actual
logging). In some scenarios those configs will carry sensitive tokens
and those tokens will end up in logs or response bodies.
Leaking of those stringified configs compromises the cluster.

Also implement fmt.GoStringer.

refactor(scheduler): Move priority types to priorities package

only use system namespace when default backend not defined

Implement the --controllers flag fully for the cloud-controller manager

kube-proxy: Fix bug in rejecting 0 endpoint svc

Do not snapshot scheduler cache before starting preemption

makes some error messages helpful in cronjob tests

Change scheduler metrics to conform metrics guidelines

Disable matching on few selectors. Remove duplicates.