* [DOCUMENTATION,SC] Removed this module after 1 year of no use.
* [FILE_EXT,NEW] Added directory_files/3, extending the functionality of fileset:directory_files/2.
* [FILE_EXT,SC] Rewrote file_name/4 to use filesex:directory_file_path/3.
* [OS_EXT,EXT] Rewrote delete_files/2 as delete_directory_contents/2 for consistency with filesex:delete_directory_contents/1.