All KCMs and KWin core use the BuiltInEffects namespace to find and
interact with the effects. There is no information left in the desktop
file which are of usage. Thus they can be removed.
Saves an image of the active window into the home directory when triggered.
It uses an OpenGL FBO and by that can include the alpha channel and the decoration shadows.
svn path=/trunk/KDE/kdebase/workspace/; revision=1157682