Switch to side-by-side view

--- a/src/qtgui/confgui/confgui.cpp
+++ b/src/qtgui/confgui/confgui.cpp
@@ -279,7 +279,7 @@
 public:
     SmallerListWidget(QWidget *parent)
 	: QListWidget(parent) {}
-    virtual QSize sizeHint() {return QSize(150, 40);}
+    virtual QSize sizeHint() const {return QSize(150, 40);}
 };
 
 ConfParamSLW::ConfParamSLW(QWidget *parent, ConfLink cflink,