Port tests to OUnit 2.0.0.
Merge remote-tracking branch 'upstream/master' into port-to-ounit2
Use testdata directory from OUnit2.
Remove ounit generated files.
add white-space-control test
update CHANGES
Merge remote-tracking branch 'upstream/master' into vcs-setup

Conflicts:
	Makefile
	tests/test.ml
	tests/test_output.ml
	tests/test_runtime.ml