One step between 0.0 and 1.0 is not very nice. So make it 20 steps between min and max by default.
One step between 0.0 and 1.0 is not very nice. So make it 20 steps between min
and max by default.

svn path=/trunk/KDE/kdelibs/phonon/; revision=634366

sandsmark/phonon-visualization-gsoc,sandsmark/phonon-visualization-gsoc,sandsmark/phonon-visualization-gsoc,sandsmark/phonon-visualization-gsoc