Berlin release

1. 41513bf Fixes to pass license check by Zack Williams · 6 years ago
2. b5d72f1 Time-stamp added and renamed heartbeat by Zsolt Haraszti · 7 years ago
3. 9b9f1ad Bug fixes by Khen Nursimulu · 7 years ago
4. 90fc35d Reformatting kafka logs by Khen Nursimulu · 7 years ago
5. 023ea7c Async/streaming gRPC client/server proto by Zsolt Haraszti · 8 years ago
6. 37a9bf8 Integration test for the build.md file by Khen Nursimulu · 8 years ago
7. da11dd7 This commit consists of: by Khen Nursimulu · 8 years ago