Addes a simple 'Renumber Dialog', very similar to the GTK one.

This code adds a Renumber Dialog, that's most a copy & paste
of the GTK visual, I didn't tried to do anything fance with it,
but I still dont like how it looks like. a better management
form is needed. :)

( Well, actually my dislike is mostly because it's on a menu
and it's on a popup, I think a 'toolbox' should exist to hold
all of those widgets that don't belong to the menu - will try
that later )

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>

qt-ui/simplewidgets.h

@@ -2,7 +2,10 @@
 #define SIMPLEWIDGETS_H
 
 class MinMaxAvgWidgetPrivate;
+class QAbstractButton;
+
 #include <QWidget>
+#include <QDialog>
 
 class MinMaxAvgWidget : public QWidget{
 	Q_OBJECT
@@ -25,4 +28,19 @@ private:
 	MinMaxAvgWidgetPrivate *d;
 };
 
-#endif
+namespace Ui{
+	class RenumberDialog;
+};
+
+class RenumberDialog : public QDialog {
+	Q_OBJECT
+public:
+	static RenumberDialog *instance();
+private slots:
+	void buttonClicked(QAbstractButton *button);
+private:
+	explicit RenumberDialog();
+	Ui::RenumberDialog *ui;
+};
+
+#endif