Test spawn and wait
Messages from thread 0:
	-- testing spawning with 5 threads
	spawning thread #1
	spawning thread #2
	spawning thread #3
	spawning thread #4
	spawning thread #5
	-- test finished
Messages from thread 1:
	thread 1 starting
	fib(10) = 89
	thread 1 exiting
Messages from thread 2:
	thread 2 starting
	fib(15) = 987
	thread 2 exiting
Messages from thread 3:
	thread 3 starting
	fib(20) = 10946
	thread 3 exiting
Messages from thread 4:
	thread 4 starting
	fib(25) = 121393
	thread 4 exiting
Messages from thread 5:
	thread 5 starting
	fib(30) = 1346269
	thread 5 exiting

Test release
Messages from thread 0:
	-- testing barrier release at 3 of 5
	spawning thread #1
	spawning thread #2
	spawning thread #3
	spawning thread #4
	spawning thread #5
	waiting
	done waiting, test finished:	after release
Messages from thread 1:
	thread starting
	fib(10) = 89
	waiting
	done waiting:	after release
Messages from thread 2:
	thread starting
	fib(15) = 987
	waiting
	done waiting:	after release
Messages from thread 3:
	thread starting
	fib(20) = 10946
	releasing barrier
	released.
Messages from thread 4:
	thread starting
	fib(25) = 121393
	waiting
	done waiting:	after release
Messages from thread 5:
	thread starting
	fib(30) = 1346269
	waiting
	done waiting:	after release