Refactor examples/ircbot.ps

[bl0ckeduser]

Refactored code, added more comments.

[darkf]

I think this should come after either I re-implement streams/IO in neu or after a complete rewrite. The IRC bot should be pretty modular, commands should be implemented as functions and stored in a command map. The main part should just consist of

defun mainloop is
    readIO
    processMessages
end

defun processMessage msg is
    define split string-split msg " "
    define command car split
     if map-exists? commands msg
          define f map-get commands msg
           f cdr split
     end
 end