make khtml/misc/decoder.* public

[Cyrille Berger]

> You may feel that doing so is better than not, because it means that the
> characters in the file will be correctly rendered. But when you edit and
> save the file, it means that you may make a change to the file that you do
> not know of.
I think its worse to have : "I open a file, edit something but don't realize 
yet that the file was opened with the wrong encoding, save, close, and 
reopent the file later, scroll, and then realize that a large part of the 
file is broken". And it has happen quiet often to me. And to me, there is 
nothing worse than data loss.
-- 
Cyrille Berger