CLOUDSTACK-4302: UI > VM wizard > affinity group step > if selected zone is dedicated, pre-select ExplicitDedication affinity group and make it non-editable.
CLOUDSTACK-4302: UI > affinity group > hide delete action when affinity group type is ExplicitDedication for regular user.
CLOUDSTACK-2583: [Object_Store_Refactor] Failed to create snapshot from
root disk of a guest VM.
CLOUDSTACK-4318:[Object_Store_Refactor] Failed to delete snapshot copied
to Staging storage during snapshot creation.
CLOUDSTACK-4338: catch up exception in case of deleting volume in parallel: it's possible that two threads can delete one volume at the same time, if the volume state is in Expunging