Unelevate the moved window when it's released.

Fixes ugly bug where window would stay elevated even after the effect finishes.

svn path=/trunk/KDE/kdebase/workspace/; revision=732299

effects/desktopgrid.cpp

@@ -532,6 +532,7 @@ void DesktopGridEffect::windowInputMouseEvent( Window, QEvent* e )
                 effects->calcDesktopLayout( &x, &y, &orientation );
                 effects->moveWindow( window_move, QPoint( rect.x() * x, rect.y() * y ));
                 effects->windowToDesktop( window_move, desktop );
+                effects->setElevatedWindow( window_move, false );
                 window_move = NULL;
                 }
             }