Move VIPs from the controller host to the Deployment

Before migrating, existing deployments and controller hosts should be deleted
or there may be VIP mac conflicts
Added modal dialog message to inform user that VIP generation might take some time.
Made the modal a bit nicer. Added a spinner.

Make the modal a bit nicer. Added a spinner.
Merge pull request #11 from knowncitizen/modal_beautify

Made the modal a bit nicer. Added a spinner.
Merge pull request #373 from sseago/nic_revamp

Move VIPs from the controller host to the Deployment