An easy way to execute kubectl against deployment

[akutz]

This patch provides an easy way to execute kubectl against a deployed cluster. Because the deployed clusters depend on a shared DNS server, the only way to access these clusters is for the host running kubectl to have the shared DNS server in the list of nameservers. Not all developers may wish to do this. To that end, a new file, kubectl.sh, has been created at the root of the project. After deploying a new cluster, this file can be used to access the cluster. Please keep in mind that kubectl.sh should be executed from inside a provider directory since the kubeconfig file is in the provider's data directory:

$ ../kubectl.sh get cs
NAME                 STATUS    MESSAGE              ERROR
controller-manager   Healthy   ok
scheduler            Healthy   ok
etcd-0               Healthy   {"health": "true"}

[figo]

a good helper tool, thanks, lgtm

[denverwilliams]

@akutz Thanks, will try get this reviewed and merged on Monday.