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.
Accumulate validation errors

Rather than report the first error, accumulate all errors and report them all
at once.
Define an errorList type and use it to accumulate
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 support for host ip binding to the API (and kubelet)
Namespace "local" volume mounts by ContainerManifest ID on disk

Local volume mounts in a pod should result in host mounted directories
which are namespaced by the ContainerManifest ID.
add http health checks.
Move definitions of service and replicationController to avoid forward references.
Merge pull request #383 from ironcladlou/namespace-local-mounts

Namespace "local" volume mounts by ContainerManifest ID on disk
Merge pull request #379 from brendandburns/host

Add support for host up binding to the API (and kubelet)
Merge pull request #384 from bgrant0607/master

Move definitions of service and replicationController to avoid forward references
Merge pull request #371 from thockin/valid3

Accumulate errors during validation
Merge pull request #365 from brendandburns/health

add http health checks.
Merge pull request #349 from thockin/cleanups

WIP: tighten identifier spec
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