Move health checking logic out to a utility.
Add a minion registry that health checks.
Update to latest cAdvisor and use data structures directly from cAdvisor
gofmt -r "GetContainerStats->GetContainerInfo"
Changed op.notify<-true to close(op.notify).
Addressed comments.
Merge pull request #456 from brendandburns/health

Move health checking logic out to a utility. Add a minion registry that health checks.
Merge pull request #474 from yifan-gu/close_chan

Changed op.notify<-true to close(op.notify).
Add support for CPU limiting to the kubelet.
Merge pull request #479 from brendandburns/cpu

Add support for CPU limiting to the kubelet.
Merge pull request #480 from monnand/cadvisor-update-1

Update kubelet package to use most recent cAdvisor's code
Move logger to own package; clean up apiserver to use serve mux.