Added the following reactions ot VM dependencies in GUI tools:
- Qube Manager will inform the user why they cannot delete a VM (which
properties of which VMS [or global] are using the VM)
- Settings window will try to intelligently rename VMs (change
properties to the new name, if possible, and inform the user what went
wrong if not)
- Settings window will inform the user why they cannot delete a VM
Also, renaming VM from Settings launched from Qube Manager will
refresh the VM list through a horrible hack, to be replaced by a neater
Admin API solution in some near future.
depends on ca848ca7bdfixesQubesOS/qubes-issues#3992fixesQubesOS/qubes-issues#3993fixesQubesOS/qubes-issues#3892fixesQubesOS/qubes-issues#3499