qt: Make sure overviewpage button is pressed at startup

Due to walletframe changes, the overview page button is no longer
automatically selected at startup even though the overview page is shown.

src/qt/bitcoingui.cpp

@@ -215,6 +215,8 @@ void BitcoinGUI::createActions(bool fIsTestnet)
     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
     tabGroup->addAction(historyAction);
 
+    // These showNormalIfMinimized are needed because Send Coins and Receive Coins
+    // can be triggered from the tray menu, and need to show the GUI to be useful.
     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
@@ -331,6 +333,7 @@ void BitcoinGUI::createToolBars()
     toolbar->addAction(sendCoinsAction);
     toolbar->addAction(receiveCoinsAction);
     toolbar->addAction(historyAction);
+    overviewAction->setChecked(true);
 }
 
 void BitcoinGUI::setClientModel(ClientModel *clientModel)