Update FJP from JSR166 CVS.
Merge branch 'jsr166'

Conflicts:
	src/main/java/java/util/concurrent/ForkJoinPool.java
	src/main/java/java/util/concurrent/ForkJoinTask.java
Merge branch 'jsr166'

Conflicts:
	src/main/java/java/util/concurrent/ForkJoinPool.java
	src/main/java/java/util/concurrent/ForkJoinTask.java
Minor touchups.
Missing event.
Proper handling of the dying threads.
Minor test improvement.