I incorporated updates stemming from yesterday's SplittableRandom list and off-list traffic. Thanks as always for all the helpfulness.
Mike Duigou: It's probably reasonable to let lambda and webrev versions lag a few days until a bit more stable. Until then, see http://gee.cs.oswego.edu/cgi-bin/viewcvs.cgi/jsr166/src/main/java/util/SplittableRandom.java?view=log -Doug
