storage: restore system tests (#2407)
storage: restore system tests (#2407)


googleapis/google-cloud-node,jgeewax/gcloud-node,GoogleCloudPlatform/gcloud-node,googleapis/google-cloud-node,googleapis/google-cloud-node,GoogleCloudPlatform/gcloud-node,GoogleCloudPlatform/gcloud-node,googleapis/google-cloud-node,callmehiphop/gcloud-node,jgeewax/gcloud-node,callmehiphop/gcloud-node