On quit
From Botnix
on_quit
Called upon every QUIT before the user's details are removed from the bot.
Parameters:
- $self - Module name
- $nid - Network name where this event occured (case sensitive)
- $server - Servername of user
- $nick - User's nickname
- $ident - User's ident (username)
- $host - User's hostname
- $reason - Quit reason

