mesos-dns restart failed

[thbeh]

I got this when when I ran the playbook....

RUNNING HANDLER [mesos-master : Restart master services] ***********************
changed: [10.141.141.10] => (item=marathon)
changed: [10.141.141.10] => (item=chronos)
changed: [10.141.141.10] => (item=mesos-master)
failed: 10.141.141.10 => {"failed": true, "item": "mesos-dns", "msg": "no service or tool found for: mesos-dns"}

[dvictor1]

mesos-dns role should run before mesos. Fixed in #37