To test FastFAC, remove example folders to configuration.folders["studies.forbidden"]
	renamed:    data/c.stu -> data/examples/c.stu
	renamed:    data/java.stu -> data/examples/java.stu
	renamed:    data/lisp.stu -> data/examples/lisp.stu
	renamed:    data/ocaml.stu -> data/examples/ocaml.stu
	renamed:    data/perl.stu -> data/examples/perl.stu
	renamed:    data/python.stu -> data/examples/python.stu
	modified:   fastfac.py