release-0.2.1

New features:

• Support for multi-value configuration settings, see examples: https://github.com/Altinity/clickhouse-operator/blob/master/docs/examples/03-settings-01.yaml
• Handle pod restarts properly (flush DNS)

Improvements:

• Simplified persistent volumes creation. Trivial example: https://github.com/Altinity/clickhouse-operator/blob/master/docs/examples/02-standard-layout-01-1shard-1repl-simple-persistent-volume.yaml
• Cleaner logging
• Schema creation logic now handles Views and Materialized views correctly