figure out more codes to ignore. look at Chrisbot/Parser.pm around line 70

add a Chrisbot::Config::bot_cfg_mandatory. if the key doesn't exist, a fatal error occurs

add functionality so a fact can be appended to:
perlbot: tutorial is also http://perl-begin.berlios.de/tutorials/
use :: and "and also" as a delimiter; two different keywords can do two different things