* Multiple files are now supported across operations.
  * Can be specified as a list or a comma separated string.
  * Single item per task params will still work without changes.
* Added `files`, `filenames`, and `file`, as aliases for the `filename` param.
* Improved output of error message to always include stderr
* `exists` now supports checking files

Follow up PRs encouraged across roles to start converting `with_items` loops on `kube` tasks into `files` param lists so we can improve performance.

* kubeadm support

* move k8s master to a subtask
* disable k8s secrets when using kubeadm
* fix etcd cert serial var
* move simple auth users to master role
* make a kubeadm-specific env file for kubelet
* add non-ha CI job

* change ci boolean vars to json format

* fixup

* Update create-gce.yml

* Update create-gce.yml

* Update create-gce.yml

Disable checks for existing resources to speed up execution.

* Use kubectl apply instead of create/replace

Disable checks for existing resources to speed up execution.

* Fix non-rbac deployment of resources as a list

* Fix autoscaler tolerations field

* set all kube resources to state=latest

* Update netchecker and weave

Removed api-version from kube.py because it is deprecated.
Updating both kube.py because dnsmasq one is actually used.
Fixed name back to kubedns for checking its resource.