update from 8.3 to 8.6.

you can now filter arbitrary programs/text through this wonderful
program!

8.6: Tue Apr 13 15:22:01 PDT 2004

• add flags for cli: -stdin will use data from STDIN
• add flags for cli: -cat, -exec to hook irssi functionality
• stop processing if we don't have text after first pass

8.5: Tue Apr 13 13:03:30 PDT 2004

• remove legacy open3() and use IPC::Open3 -- works in 5.8 now
• support for specifying color in -4 .. for example -4red
• added some more spookwords
• added the -unused command

8.4: This release did not go public