Skip nodes health check after scale-up or scale-down
Skip nodes health check after scale-up or scale-down

New nodes spawned after scale-up won't have dcos-metrics disabled
and it will report unhealthy status due to mesos authentication
being enabled.

We temporarily skip nodes health check after scale-up / scale-down.
The nodes health check will only be done in the "initial state"
testing phase.

ionutbalutoiu/mesos-jenkins,ionutbalutoiu/mesos-jenkins