Use a fixed domain name in integration tests
Use a fixed domain name in integration tests

Instead of generating a random domain name based on the time,
use a fixed domain name, and add some logic to cleanup if
previous invokation left the domain running.

Signed-off-by: Daniel P. Berrange <bb938cf255e055ff3507f2627d214e8e62118fcf@redhat.com>

libvirt/libvirt-go,libvirt/libvirt-go,libvirt/libvirt-go,libvirt/libvirt-go