Added fsync for unix/windows in file utils

logbook/adif.cpp

@@ -394,6 +394,7 @@ bool ADIF::addQSOToFile(QByteArray const& ADIF_record)
 
         out << ADIF_record << " <eor>" << endl;
         out.flush();
+        flushFileBuffer(f2);
         f2.close();
     }
     return true;

logbook/adif.h

@@ -18,6 +18,8 @@
 #include <QtGui>
 #endif
 
+#include "fileutils.h"
+
 class QDateTime;
 
 extern const QStringList ADIF_FIELDS;