Add Mesos hyperkube minion server

The minion server will
- launch the proxy and executor
- relaunch them when they terminate uncleanly
- logrotate their logs.

It is a replacement for a full-blown init process like s6 which is not necessary
in this case.

cmd/hyperkube/kube-scheduler.go

@@ -29,7 +29,7 @@ func NewScheduler() *Server {
 	s := scheduler.NewSchedulerServer()
 
 	hks := Server{
-		SimpleUsage: hyperkube.KM_SCHEDULER,
+		SimpleUsage: hyperkube.CommandScheduler,
 		Long:        "Implements a Kubernetes scheduler.  This will assign pods to kubelets based on capacity and constraints.",
 		Run: func(_ *Server, args []string) error {
 			return s.Run(args)