3 changes/fixes around how tuples are output by the replayer. #513

Copy the bytes into the tuple output rather than try to use the array (which could be very big and full of padded zeros). Don't use a json layout for log4j output - that cases the tuples to be escaped. Instead, just output the json-coded contents + a newline. Fix the humanReadables script to work with the above change. Signed-off-by: Greg Schohn <[email protected]>