Updated from global requirements

Change-Id: Ie52204a9bbfd3e608a947f71dd3f406129aa9533
Return status for compute node

Currently when return compute node information, there is no status returned.

When the corresponding service is disabled or down and users try to
do 'hypervisor-list' or 'hypervisor-show', they will have no idea of it.

Implements: blueprint return-status-for-hypervisor-node
Closes-Bug: #1285259

DocImpact

Change-Id: I17c53b454ccef023f298f1b8875daef965d2325d
Merge "Updated from global requirements"
Merge "Return status for compute node"