Cut v0.19.1 release

None driver

* Update kubedns to 1.14.2.

* Also change integration test to cover the naked "kubernetes" domain.

Fixed mount daemon to be off by default and to use different director…

Fixed mount daemon to be off by default and to use different directories than the current mounts until they are turned off.

Added mount daemon process that is starts/stops w/ minikube start/stop

Fix the URL to the minikube_iso.md file

Fix reference to ADD_ADDON.md

Validate k8s version before starting VM

Added ssh-key cmd

added way to find interface for vbox and ip flag to mount

Staging Sync [master]

Kubernetes vendors these repos directly from the staging directory even
though they now have their own repositories on github.  We should use
the code from the staging/ directory since it is guaranteed to be
compatible with the version of kube we are vendoring.

Fix patch for TPR panics in localkube

The patch correctly identified the metadata problem but did not skip
over when collecting the group metadata for the restmapper.

* Add some extra cleanup to common.sh

* Sudo more commands.

Consistent short description for commands

Update releases

Also, cache in memory localkube versions in multiple calls to the GCS
bucket.  These versions will not change during the life of the minikube
process once fetched and are used multiple times.

Upgrade to k8s v1.6.3

Add script to automate localkube upgrades

Fix typo

fix broken links and scripts paths