Changed the semantics of Condition, TimedWait, MessageQueue,
	  Task, Mutex, Semaphore, and Token to use absolute times for
	  their timeouts.

	  Changed the semantics of EventHandler, ServiceObject, and
	  SvcHandler such that handleTimeout receives a TimeValue
	  representing when the event occured.

	  Changed TimerQueue internally to reflect the above changes.

	  Also made better checks in Token and Mutex so that non-owners
	  can call release without adverse effects.  I plan to try to
	  do this with Semaphore and RWMutex as well.

          Fixed several bugs in Token tryacquire and renew.  Added
	  relativeTimeOfDay methods to TimeValue.

java.lang is imported or stuff is imported from a package that it's
already a member of.

create an internal thread or not.