Reinstate Tab view

After discussion on the list the utility and popularity of
the original tab view was restated. This patch reinstates
the tab view and attempts to unify the Qt tab widget with
the general look and feel of the application.

src/GoogleMapControl.cpp

@@ -151,6 +151,7 @@ GoogleMapControl::GoogleMapControl(MainWindow *mw) : GcWindow(mw), main(mw), ran
     parent = mw;
     view = new QWebView();
     view->setContentsMargins(0,0,0,0);
+    view->page()->view()->setContentsMargins(0,0,0,0);
     view->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 
     layout = new QVBoxLayout();