Changes to L7R to allow shutting down VMs, client support

git-svn-id: https://svn.qindel.com/repos/main/projects/qindel/QVD/src/trunk@21915 4046b530-fbad-4e16-af16-ee11f0b55167
use distinct in queries to avoid repeated entries on the VM and DI listings

git-svn-id: https://svn.qindel.com/repos/main/projects/qindel/QVD/src/trunk@21916 4046b530-fbad-4e16-af16-ee11f0b55167