Restore stubbed request in the new vhosts acceptance test
Restore stubbed request in the new vhosts acceptance test

Also, the request URL for the POST to `services/:service-id/vhosts`
needed to be updated.

chasballew/dashboard.aptible.com,aptible/dashboard.aptible.com,chasballew/dashboard.aptible.com,aptible/dashboard.aptible.com,aptible/dashboard.aptible.com,blakepettersson/dashboard.aptible.com,blakepettersson/dashboard.aptible.com,chasballew/dashboard.aptible.com,blakepettersson/dashboard.aptible.com