It appears that the contents of /lib (bencode.php, mimeparse.php, spyc.php) is third-party code. Third party code - even MIT re-licenced as GPL - may not be stored in the drupal CVS. Please see http://drupal.org/node/66113 .

Perhaps they could be loaded with http://drupal.org/project/libraries to avoid conflicts with other modules that may need the same libraries (for example loading spyc.php twice is a fatal error in PHP).