runner command

To run the e2e tests against one or more hosts on gce: $ go run run_e2e.go --logtostderr --v 2 --ssh-env gce --hosts <comma separated hosts> To run the e2e tests against one or more images on gce and provision them: $ go run run_e2e.go --logtostderr --v 2 --project <project> --zone <zone> --ssh-env gce --images <comma separated images>