CLOUDSTACK-3950: UI > template/ISO page > hide CopyTemplate/CopyISO action when it's region-wide (i.e. zoneid is null)
Revert "CLOUDSTACK-4132 Added the dnsmasq setting update-dhcp-clent to enable clients to update DNS records"

This reverts commit 76990612f566b64d234e5e92eefd371a4459bc96.