Put all KDE config files under one directory like ~/.config/kde/

[stardiviner]

I found KDE put all components config files under ~/.config/.
Because there are lot of configs of KDE, and lot of programs configs 
under it.
When I want to do something (like reset KDE configs) I don't know which 
ones need to delete.
Put all KDE related config files under ~/.config/kde/ will help user.

Really. That's a totally mess!!!