Rename kdisplay for enhanced compatibility with KDE4

kdirstat/kdirtreeview.cpp

@@ -111,7 +111,7 @@ KDirTreeView::KDirTreeView( TQWidget * parent )
     ensureContrast();
 
 
-    connect( kapp,	TQT_SIGNAL( kdisplayPaletteChanged()	),
+    connect( kapp,	TQT_SIGNAL( tdedisplayPaletteChanged()	),
 	     this,	TQT_SLOT  ( paletteChanged()		) );
 
     connect( this,	TQT_SIGNAL( selectionChanged	( TQListViewItem * ) ),