Rename kdisplay for enhanced compatibility with KDE4

src/kcolorcombo2.h

@@ -54,7 +54,7 @@ class KColorPopup;
  *     TQWidget::paletteChange(oldPalette);
  * }
  * @endcode
- * or connect the signal TDEApplication::kdisplayPaletteChanged() to a slot that will set the default color of this widget.
+ * or connect the signal TDEApplication::tdedisplayPaletteChanged() to a slot that will set the default color of this widget.
  *
  * @par Advanced usage:
  * By default, the combobox show a well balanced rainbow, OK for most usages, and you don't need to do anything for it to work.\n