Fix 32bit build
added healthz check to the proxy with configurable port
Do not use nginx image in e2e test
Merge pull request #2531 from jbeda/32bit-fix

Fix 32bit build
Merge pull request #2520 from mikedanese/proxy-healthz

add health check to kube-proxy
Merge pull request #2555 from erictune/cleanup4

Do not use nginx image in e2e test