Add cAdvisor into third_party
add /containerStats
GOPATH...
testify
unit test for cadvisor
more unit test for GetContainerStats()
more unit test
unit test for GetContainerStats()
gofmt -s -w -l
write StatusOK to the header after json.Encode()
write headers after error checking
style
use json.Marshal directly
Merge pull request #174 from monnand/kubelet-cadvisor

Letting kubelet retrieve container stats from cAdvisor