Squashed 'kafka/' content from commit 938c4e0

git-subtree-dir: kafka
git-subtree-split: 938c4e00c50e10f80abf0a40c13c0b29b83d13cf
Merge commit '020b3a70aa03bca5eac4dd6a21ca3bcbaa0f8733' as 'kafka'
Adding Kafka