* rfc5735 was updated by rfc6598, i've updated the ipv4_special_blocks table by modifying inc/database.lisp to reflect this update
* CLISP can now be used as an implementation after changing string-char-p to string-has-char-p (inc/functions.lisp)
* changed function comments to documentation strings (inc/functions.lisp)
* *files-dir* is now lexical