make it so we dont attempt to pull tagless images
make it so we dont attempt to pull tagless images

nanobox-io/nanobox,nanobox-io/nanobox,nanobox-io/nanobox-cli,nanobox-io/nanobox-cli,pagodabox/nanobox-cli,pagodabox/nanobox-cli,nanobox-io/nanobox-cli