double click stdout to move to front or back

eventMouseClick.go

@@ -146,4 +146,16 @@ func doMouseClick(w int, h int) {
 func doMouseDoubleClick(w int, h int) {
 	me.mouse.double = false
 	log.Printf("actually a double click (%d,%d)", w, h)
+
+	for _, tk := range findByXY(w, h) {
+		if tk.node.WidgetType == widget.Stdout {
+			if me.stdout.outputOnTop {
+				me.stdout.outputOnTop = false
+				setThingsOnTop()
+			} else {
+				me.stdout.outputOnTop = true
+				setThingsOnTop()
+			}
+		}
+	}
 }