VOL-2861 replace uint64 kafka interadapter timestamps with timestamp proto

Change-Id: I413b88bac061bbca6d6bcf1cc0e5064139fd44eb
diff --git a/VERSION b/VERSION
index 005119b..8e8299d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.4.1
+2.4.2