Improved GUI opening performance so there is less delay between clicking the icon and the gui actually appearing.

Made network entry list inactive while refreshing networks.
Made debugging output less spammy and more helpful (still incomplete).

wicd.py

@@ -336,7 +336,7 @@ class TrayIcon():
             """ Handles tray mouse click events. """
             if event.button == 1:
                 self.toggle_wicd_gui()
-            if event.button == 3:
+            elif event.button == 3:
                 self.menu.popup(None, None, None, event.button, event.time)
 
         def set_from_file(self, val=None):