CLOUDSTACK-5733: UI > Virtual Routers > group by zone/pod/cluster: fix a bug that "Total of Virtual Routers" in first row is blank.
CLOUDSTACK-5733: UI > Virtual Routers > group by zone/pod/cluster > remove redundant code.
CLOUDSTACK-5607: Don't delete the template if its stored in other zones.
CLOUDSTACK-5763: if vm is stopped, then don't check hypervisor support live storage migration capabilities.