This shared reference caused the resource usages between the current report (not published to ZooKeeper) and the
most recently written report to be incorrect and hence when the broker utilization was rapidly changing (e.g., after
a broker restart), the load report only got written once per 15 minutes.

* Changed ProducerConfiguration blockIfQueueFull to false by default

* Fixed test cases

* add api to increase partitions of existing non-global partitioned-topic

* add documentation for ordering violation

fix a typo in pulsar binary protocol specification: CHECKSUM size is not 2 bytes, but 4 bytes (#427)