Checked in test driver and moved files into tests/ dir

scripts/fjdriver.py

scripts/fjtests/__init__.py

scripts/fjtests/fjtests.py

scripts/fjtests/large.py

scripts/fjtests/standard.py

tests/FILELIST

tests/Makefile

tests/fib_test.c

tests/list.c

tests/list.h

tests/mergesort.c

tests/nqueens.c

tests/psum_test.c

tests/quicksort.c

tests/threadpool.h

tests/threadpool_lib.c

tests/threadpool_lib.h

tests/threadpool_test.c

tests/threadpool_test2.c

tests/threadpool_test3.c