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* Fixed bug where message keys weren't sent to Kafka
* Fixed bug where producer didn't retry metadata lookup
* Fixed hashing of keys in HashedPartitioner to use Murmur2, like Java
* Shuffle the broker list when sending broker-unaware requests
* Reduced Twisted runtime requirement to 13.2.0
* Consolidated tox configuration to one tox.ini file
* Added logo
* Cleanup of License, ReadMe, Makefile, etc.