Adds Single-Click editions on the TableView

This is a linus request, adds a Single-click edition
on the tableview to make it more consistent with the
rest of the interface where edition is permitted.

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

qt-ui/maintab.h

@@ -60,6 +60,8 @@ public slots:
 	void on_rating_valueChanged(int value);
 	void on_visibility_valueChanged(int value);
 	void tabChanged(int idx);
+	void editCylinderWidget(const QModelIndex& index);
+	void editWeigthWidget(const QModelIndex& index);
 
 private:
 	Ui::MainTab *ui;