### Motivation Ensure that we don't have dependency on a ZK version marked as "beta".
### Modifications * Upgrade to BookKeeper 4.7.2 which includes several bugfixes and removed dependency on ZK-3.5.x * Dowgraded ZK to latest stable version 3.4.13 and adapted the AOP wrappers that we had in place for ZK 3.5.x [ Full content available at: https://github.com/apache/incubator-pulsar/pull/2473 ] This message was relayed via gitbox.apache.org for [email protected]
