Update code to cache correct images for different k8s versions
Update code to cache correct images for different k8s versions

aaron-prindle/minikube,warmchang/minikube,kubernetes/minikube,dims/minikube,warmchang/minikube,kubernetes/minikube,dlorenc/minikube,kubernetes/minikube,dlorenc/minikube,dalehamel/minikube,aaron-prindle/minikube,warmchang/minikube,dalehamel/minikube,dlorenc/minikube,warmchang/minikube,dims/minikube,aaron-prindle/minikube,dlorenc/minikube,warmchang/minikube,kubernetes/minikube,dalehamel/minikube,kubernetes/minikube,dlorenc/minikube,dlorenc/minikube,dlorenc/minikube,dims/minikube,kubernetes/minikube,kubernetes/minikube,dlorenc/minikube,warmchang/minikube,warmchang/minikube