CLOUDSTACK-4979: if no hostName is passed to deployVm call, automatically generated hostName follows the pattern <instance.id global config>-<randomly generated uuid>.
Example: VM-a6c6457e-e4d0-486f-a392-9239be9b36f5
CLOUDSTACK-5037: UI > Infrastructure > clusters > Settings tab > when "cpu.overprovisioning.factor" or "mem.overprovisioning.factor" is changed, pop up a warning message > change text.
CLOUDSTACK-4979: fix hostName for VmWare vms to follow the same logic
CLOUDSTACK-4793: UI > Infrastructure > Virtual Routers > detail tab > add Requires Upgrade field to reflect new parameter requiresupgrade in API response.