* The backup tar file format has changed. Backups created using previous versions of Ark cannot be restored using v0.5.0.
* When backing up one or more specific namespaces, cluster-scoped resources are no longer backed up by default, with the exception of PVs that are used within the target namespace(s). Cluster-scoped resources can still be included by explicitly specifying `--include-cluster-resources`.
New features:
* Add customized user-agent string for Ark CLI
* Switch from glog to logrus
* Exclude nodes from restoration
* Add a FAQ
* Record PV availability zone and use it when restoring volumes from snapshots
* Back up the PV associated with a PVC
* Add `--include-cluster-resources` flag to `ark backup create`
* Add `--include-cluster-resources` flag to `ark restore create`
* Properly support resource restore priorities across cluster-scoped and namespace-scoped resources