Change log (since Release Candidate 1):
25fa074 Fix checkstyle for new Hamcrest import
8626b7c Upgrade Versions for Release
0c942d4 GH-1485: Option to suppress single client.id
05e56ad GH-1483: Trust target class sub-packages
be3c642 GH-1479: ConsumerRecordMetadata
c831259 Add missed rootProject for Checkstyle location
0fe7424 Fix Checkstyle to rely on the absolute path
ed14bcf Fix Sonar issue
6a61cad Add getAssignmentsByClientId() to containers
b51a778 Fix fatal early return from onPartitionsAssigned
1810409 GH-1475: Add KafkaSendCallback
b1f33aa Don't commit on assignment with existing commit
4a57a8d Doc Polishing
2aef947 Fix commit on assignment for earliest setting
6d2bd6f Manage log.dir in the EmbeddedKafkaBroker
2db5263 Doc Fix
9a961aa Fix docsZip task for new doc location