* Backup deletion has been completely revamped to make it simpler and less error-prone. As a user, you still use the `ark backup delete` command to request deletion of a backup and its associated cloud
resources; behind the scenes, we've switched to using a new `DeleteBackupRequest` Custom Resource and associated controller for processing deletion requests.
* We've reduced the number of required fields in the Ark config. For Azure, `location` is no longer required, and for GCP, `project` is not needed.
* Ark now copies tags from volumes to snapshots during backup, and from snapshots to new volumes during restore.
### Breaking Changes:
* Ark has moved back to a single namespace (`heptio-ark` by default) as part of #383.
### All New Features:
* Add global `--kubecontext` flag to Ark CLI (#296, @blakebarnett)
* Azure: support cross-resource group restores of volumes (#356 #378, @skriss)
* AWS/Azure/GCP: copy tags from volumes to snapshots, and from snapshots to volumes (#341, @skriss)
* Replace finalizer for backup deletion with `DeleteBackupRequest` custom resource & controller (#383 #431, @ncdc@nrb)
* Don't log warnings during restore if an identical object already exists in the cluster (#405, @nrb)
* Add bash & zsh completion support (#384, @containscafeine)
### Bug Fixes / Other Changes:
* Error from the Ark CLI if attempting to restore a non-existent backup (#302, @ncdc)
* Enable running the Ark server locally for development purposes (#334, @ncdc)
* Add examples to `ark schedule create` documentation (#331, @lypht)
* GCP: Remove `project` requirement from Ark config (#345, @skriss)
* Add `--from-backup` flag to `ark restore create` and allow custom restore names (#342 #409, @skriss)
* Azure: remove `location` requirement from Ark config (#344, @skriss)
* Add documentation/examples for storing backups in IBM Cloud Object Storage (#321, @roytman)
* Reduce verbosity of hooks logging (#362, @skriss)
* AWS: Add minimal IAM policy to documentation (#363 #419, @hopkinsth)
* Don't restore events (#374, @sanketjpatel)
* Azure: reduce API polling interval from 60s to 5s (#359, @skriss)
* Switch from hostPath to emptyDir volume type for minio example (#386, @containscafeine)
* Add limit ranges as a prioritized resource for restores (#392, @containscafeine)
* AWS: Add documentation on using Ark with kube2iam (#402, @domderen)
* Azure: add node selector so Ark pod is scheduled on a linux node (#415, @ffd2subroutine)
* Error from the Ark CLI if attempting to get logs for a non-existent restore (#391, @containscafeine)
* GCP: Add minimal IAM policy to documentation (#429, @skriss@jody-frankowski)
### Upgrading from v0.7.1:
Ark v0.7.1 moved the Ark server deployment into a separate namespace, `heptio-ark-server`. As of v0.8.0 we've
returned to a single namespace, `heptio-ark`, for all Ark-related resources. If you're currently running v0.7.1,
here are the steps you can take to upgrade:
1. Execute the steps from the **Credentials and configuration** section for your cloud:
