Fix 32bit build
Remove never-needed return value.

Make some types private.
Fix pointers in AWS CloudFormation template
Add a note indicating breakage in these configs.
Enable docker registry cache. By default it is off
Merge pull request #2527 from erictune/cleanup2

Remove unused return value.  Make stuff private.
kubectl get format is specified with -o, not -f
Increase the verbosit of integration test runs.
Display node label
fix typo
Typo fix
reset err value to SetDeadline return
Move service enviroment vars code.

GetServiceEnvironmentVariables (originally in  pkg/registry/service/rest.go)
is split into two parts: one that lists services, and one that turns
a ServiceList into environment vars.  This will allow a subsequent PR
to add a call to the latter function with an existing ServiceList.
The former part is moved into pkg/registry/pod/bound_pod_factory.go.
The latter part is put in a new package, pkg/kubelet/envvars/envvars.go.
The new package is under kubelet because the container enviroment is more
associated with kubelet than with registry.
Test code moved too.
Hold serve_hostname code in kubernetes repo
added healthz check to the proxy with configurable port
Do not use nginx image in e2e test
multivalued requirement parser more whitespace tolerant
gitrepo validation
fixed a minor format problem
Merge pull request #2531 from jbeda/32bit-fix

Fix 32bit build