Attach volume events are not correctly shown in events.

Signed-off-by: Koushik Das <koushik@apache.org>
fix NPE when delete a domain
[UI] bug fix: the host uuid is wrong if it is dedicated to a domain
Add snapshotName parameter in CreateSnapshotCmd
CLOUDSTACK-8007: Fixed the script 'test_vm_passwdenabled.py' - Template created by Admin should have public access to be used for regular User VM Deployment