Added cluster-clean to .PHONY targets
Added cluster-clean to .PHONY targets

davidvossel/kubevirt,fabiand/kubevirt,stu-gott/kubevirt,fabiand/kubevirt,davidvossel/kubevirt,kubevirt/kubevirt,davidvossel/kubevirt,rmohr/kubevirt,stu-gott/kubevirt,kubevirt/kubevirt,stu-gott/kubevirt,stu-gott/kubevirt,kubevirt/kubevirt,davidvossel/kubevirt,rmohr/kubevirt,kubevirt/kubevirt