update URLs for kafka and zookeeper. upgrade kafka to 0.8 (not beta). make kafka kill script use SIGTERM not SIGINT (revert KAFKA-1031 change), since it wasn't working with nohup (at least on Mac).
update URLs for kafka and zookeeper. upgrade kafka to 0.8 (not beta). make kafka kill script use SIGTERM not SIGINT (revert KAFKA-1031 change), since it wasn't working with nohup (at least on Mac).

fredji97/samza,fredji97/samza,fredji97/samza,fredji97/samza,fredji97/samza