plugins: core: engine vm liveliness check after deployment
plugins: core: engine vm liveliness check after deployment

Check the engine's health is 'good' before ending the deployment process.

Checking the engine's vm status (up or down) isn't enough,
the fact that the vm is up not necessary says that the engine is ok.

Change-Id: Ie2ab5e34c85919c278e55ae7b94e55d5cc443910
Bug-Url: https://bugzilla.redhat.com/1304650
Signed-off-by: Ido Rosenzwig <d3cf649376f7b9625b3012cf4ff65bcb09ba1a88@redhat.com>

oVirt/ovirt-hosted-engine-setup,oVirt/ovirt-hosted-engine-setup