* Added deployment file for 1.6

- Added a ServiceAccount for kubernetes-dashboard and created a
  ClusterRoleBinding to cluster-admin (#1803)
- Updated the toleration to node-role.kubernetes.io/master
- Moved the toleration from the annotations into spec

* Clarified the reason for the new deployment file

- Renamed to kubernetes-dashboard-with-rbac.yaml
- Added comment in the yaml
- Added app labels for ServiceAccount and ClusterRoleBinding

* Added instructions for kubernetes-dashboard-with-rbac.yaml

* Fixed typo in README.md

* Updated/added -head deployments

* Fixed typos in -head deployments

* Saved current deployment files to -no-rbac

* Updated main deployment files with the RBAC versions

* Updated docs with legacy deployment files

* Fixed typo in README.md