Port Thread* methods to boost::thread_group

src/qt/optionsmodel.cpp

@@ -219,9 +219,8 @@ bool OptionsModel::setData(const QModelIndex & index, const QVariant & value, in
             settings.setValue("fMinimizeToTray", fMinimizeToTray);
             break;
         case MapPortUPnP:
-            fUseUPnP = value.toBool();
-            settings.setValue("fUseUPnP", fUseUPnP);
-            MapPort();
+            settings.setValue("fUseUPnP", value.toBool());
+            MapPort(value.toBool());
             break;
         case MinimizeOnClose:
             fMinimizeOnClose = value.toBool();