[IRCServices] Feature: nickchange and guestnickprefix

[Andrew Church]

>I think than this feature is already implement. I just ask to do it more
>frexible.

     I agree, this is useless flexibility.  It also adds complications in
that Services has to check whether the new randomly-generated nick is
registered (GuestNickPrefix nicks are not allowed to be registered so they
don't have this problem).

  --Andrew Church
    achurch at achurch.org
    http://achurch.org/