Get machine stats from cAdvisor
Merge pull request #328 from monnand/root-container

Get root container stats from cAdvisor
Fix an error in the async-path that led to dropping pods.
Merge pull request #350 from brendandburns/async

Fix an error in the async-path that led to dropping pods.
fix data races in controller
turn on race detector by default
fix data race introduced by 1798e0f
fix data race in config.go. This is a hard one.
turn off code cover.