v1.6.0

Features/Enhancement

• New Flag --registry-file FILE for create to point to a non-default registries.yaml file (#173, @inercia)
• Do not print the /etc/hosts message if the registry name can be resolved (#177, @inercia)
• New flag --prune for delete to disconnect all containers from the cluster network before removing it (#178, @inercia)
• Start existing registry when starting/creating a cluster
• improved error message when getting the kubeconfig fails

Build/Development

• stop e2e dind runner (#170, @inercia)

Docs

• updated docs about using registries (#176, @inercia)