Make tryRegistry non-blocking, remove tryLookup, add timeout
Make tryRegistry non-blocking, remove tryLookup, add timeout

kubernetes/minikube,warmchang/minikube,warmchang/minikube,warmchang/minikube,kubernetes/minikube,dalehamel/minikube,kubernetes/minikube,kubernetes/minikube,warmchang/minikube,warmchang/minikube,kubernetes/minikube,dalehamel/minikube,warmchang/minikube,kubernetes/minikube,warmchang/minikube,kubernetes/minikube,dalehamel/minikube