show last few transactions on overview page

src/qt/overviewpage.h

@@ -7,6 +7,7 @@ namespace Ui {
     class OverviewPage;
 }
 class WalletModel;
+class TxViewDelegate;
 
 class OverviewPage : public QWidget
 {
@@ -28,6 +29,8 @@ private:
     qint64 currentBalance;
     qint64 currentUnconfirmedBalance;
 
+    TxViewDelegate *txdelegate;
+
 private slots:
     void displayUnitChanged();
 };