Periodically shows message while waiting for completion of REST
operations so that users understand what is happening.
Tighten the identifiers spec

As I read through it I wanted to wordsmith a bit, which lead to reordering
some to read sort of top-down. There were a couple things I thought were wrong
(pod name should be a subdomain) and a few things I think we can make more
concise. I also added examples and clarified implications.
Resolve #370
Add documentation notes about Google Storage JSON API setting being required and about the need for instances to be able to send traffic to each other on their private ips.
Add PodIP to the info returned for a pod.
Merge pull request #349 from thockin/cleanups

WIP: tighten identifier spec
Fix integration tests with a check for nil
Add a unit test to validate behavior
Use glog instead of printing to stderr.
Merge pull request #382 from raphael/370_update_docs

Resolve #370
Merge pull request #374 from yugui/feature/show-progress

Periodically shows message while waiting for completion of REST operations
Fixes golint errors in pkg/api
Fixes golint errors in pkg/cloudprovider
Fixes golint errors in pkg/controller
Fixes golint errors in pkg/kubecfg
Fixes golint errors in pkg/kubelet
Merge pull request #393 from yugui/fix/golint

Fixes Go lint errors.
Address Clayton's comment.
Added a link to the CoreOS howto.
IntOrString for use in JSON/YAML

Specifying an API type as IntOrString will allow JSON and YAML to accept
either ints or strings with the same name.  For example, port names or
numbers.
Merge pull request #389 from brendandburns/podip

Add PodIP to the info returned for a pod.
Add Hostname to the docker run command.