Added the dir_list() method, which gives the user direct access to
the list of directories that makes up a Path::Class::Dir object
(NEEDS DOCUMENTATION). [Suggested by Smylers]Documented the behavior of $dir->next() when the directory doesn't
exist or is unreadable (it dies). [Smylers]Fixed a bug that could result in extra backslashes between the
volume and path (such as C:\Foo\Bar). [Smylers]Added the is_dir() method, which is a simple way to tell the
difference between a file and a directory. [Suggested by Smylers]