Release 0.2.2

Added

• Backup creation time is added in backup status.
• Total size of backups time is added in backup service status.
• Cluster members that are ready and unready to serve requests are tracked via the ClusterStatus fields Members.Ready and Members.Unready

Changed

• PodPolicy resourceRequirements field is renamed to resources
• Default etcd version is changed to 3.1.2
• Self-hosted etcd pod uses hostPath with path /var/etcd/$ns-$member

Fixed

• [GH-851] Fixed a race that caused nil pointer access panic
• [GH-823] Fixed backup service status not shown in TPR status