Minor fixes

mainwindow.cpp

@@ -62,6 +62,8 @@ MainWindow::~MainWindow()
     if(gfile.isOpen()) gfile.close();
     if(printer.isOpen()) printer.close();
 
+    settings.setValue("printer/baudrateIndex", ui->baudbox->currentIndex());
+
     settings.beginWriteArray("user/recentfiles");
     for(int i = 0; i < recentFiles.size(); i++)
     {

mainwindow.h

@@ -11,6 +11,7 @@
 #include <QTimer>
 #include <QSettings>
 #include <QElapsedTimer>
+#include <QMessageBox>
 
 #include "settingswindow.h"
 #include "aboutwindow.h"
@@ -52,7 +53,6 @@ private:
     int currentLine;
     QString userCommand;
 
-
 private slots:
     void open();
     void serialconnect();