add more logging for azure disk diagnostics

kubectl: copy deployment util dependency into kubectl

Remove error output from stdout to stderr

remove duplicate root check for kubeadm

delete node from aws if it is terminated

Fluentd: concatenate long logs

remove unneed if block for kubectl delete command

Fix error messages suggesting invalid flag

Make CoreDNS default in kubeup and update CoreDNS version/manifest in kubeup and kubeadm

Fix the returned messaged: statefullset->statefulset

Add test for kubectl cluster-info dump

Optimizes calculating stats when only CPU and Memory stats are returned from Kubelet stats/summary http endpoint. 

Include vendor/k8s.io in coverage instrumentation

kubeadm: Fix node join taints

Add DNS container memory check to scalability tests

validate args for kubectl api-versions/api-resources command

Opt out of chowning and chmoding from kubectl cp.

Add guidance for testing in the PR template

kubectl: move translated data into kubectl

`kubectl cp` relies on tar to extract the copied file/directory in the
container, tar by default attempts to chown/chmod the extracted file
after extraction if the user is the "superuser"(root)

```
--same-owner
try extracting files with the same ownership as exists in the archive
(default for superuser)
-p, --preserve-permissions, --same-permissions
extract information about file permissions (default for superuser)
```

This fails in environment where the container runs as root but is not
granted the OWNER or CHOWN capability.

Before this patch below was the behavior of `kubectl cp`

```
kubectl cp README.md foo-67b6fcbd4c-qjlt6:/tmp
tar: README.md: Cannot change ownership to uid 1000, gid 1000: Operation
not permitted
tar: Exiting with failure status due to previous errors
command terminated with exit code 2
kubectl exec -it foo-67b6fcbd4c-qjlt6 -- ls -l /tmp/README.md
-rw------- 1 1000 1000 3179 Oct  7 22:00 /tmp/README.md
```

After this patch

```
kubectl cp -x a foo-67b6fcbd4c-qjlt6:/
kubectl exec -it foo-67b6fcbd4c-qjlt6 -- ls -l /tmp/README.md
-rw-r--r-- 1 root root 3179 Oct  7 22:00 /tmp/README.md
```

Add test cases for taintbasedevictions

support Azure premium file for azure file plugin

Make sure kubelet is restarted after it is stopped in the test

Clean cross-build image and update to protoc 3.0.2

kubectl: remove internalclientset dependency

promote TaintBasedEvictions featuregate to beta

remove unused code of (pkg/controller)

Simplify taint manager workqueue keys