Put system service to kube-system namespace

[gyliu513]

After Kubernetes + Mesos installation finished, I can see some system services in default namespace, we should put those system services in kube-system namespace just like native kubernetes.

root@mesos8:~# ./kubectl  -s http://localhost:8888 get services
NAME             CLUSTER-IP   EXTERNAL-IP   PORT(S)     AGE
k8sm-scheduler   10.0.0.120   <none>        10251/TCP   2d
kubernetes       10.0.0.1     <none>        443/TCP     2d

[jdef]

sounds good to me. PRs welcome :)