0.9.0

Features:

• CreateTopics API for Kafka 0.10.1+ https://issues.apache.org/jira/browse/KAFKA-2945 (@jbruggem)
• ApiVersions API for Kafka 0.10.0+ https://kafka.apache.org/protocol.html#api_versions (@jbruggem)
• Support callback function to set the broker configuration, allowing easier runtime broker discovery (@thecodeboss)
• Use the ApiVersions API to choose which API message version to send (@jbruggem)

Bug fixes:

• Send better logging messages on failure (@cdegroot)

Misc:

• Dialyzer & Credo cleanup/fixes
• Codebase formatted with mix format
• Documentation fixes (@IanVaughan , @jasongoodwin , @jhchabran , @amorphid , @skateinmars )
• CI tests now run Credo

PRs included:

#296
#297
#302
#303
#305
#312
#313
#316
#317
#319
#320
#323
#325
#327