Automatic merge from submit-queue (batch tested with PRs 41667, 41820, 40910, 41645, 41361)

Changing --use-kubernetes-version to --kubernetes-version for kubeadm beta

**What this PR does / why we need it**: to follow-up agreement on SIG-Cluster-Lifecycle on 2017-02-21, flag for `kubeadm init` should be renamed.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**: Meeting minutes for SIG-Cluster-Lifecycle 2017-02-21

**Release note**:
```release-note
Flag --use-kubernetes-version for kubeadm init renamed to --kubernetes-version
```