Resync j.u.c and Update ConcurrentHashMap to v8 - JEP 155

[Chris Hegarty]

The final outstanding task from JEP 155 is to add CHMv8, and update the 
remainder of the j.u.c implementation, add spliterator implementation 
for concurrent collections, etc

8004138: Resync java.util.concurrent classes with Dougs CVS - 05/2013
8005704: Update ConcurrentHashMap to v8

specdiff:
http://cr.openjdk.java.net/~chegar/8004138/ver.00/specdiff/java/util/concurrent/package-summary.html
webrev
http://cr.openjdk.java.net/~chegar/8004138/ver.00/webrev/

As per usual all changes are coming from Doug, and others. Most of the 
changes have been baking in the lambda repo for some time now.

I'm not expecting an in dept review per say. All regression tests and 
JCK will be run. I guess the main focus should be on the new CHM API's

-Chris.