Apart from updating some yml to new apiVersions, this release also includes:

• Adds additional listener on port 9094 for clients outside the cluster (#78)
• Adds bootstrap.kafka service, for clients' --bootstrap.servers args to be independent of the current status of broker pods (#52)
• Dynamically provisioned volumes are now Retained by default (#85)
• Example kafka-manager manifests, to list topics w/ stats (#83).
• The readiness tests now stay online, to show the effect of broker/node disruptions (#79)
• The Kafka readiness probe has been simplified (#81)