Allow to save list of "other servers"

* load / save setting called
* fixed handling in server form

Follow up of refs #533, related to #545

src/blackgui/components/settingsnetworkserverscomponent.h

@@ -44,7 +44,7 @@ namespace BlackGui
             void ps_reloadSettings();
 
             //! Network server selected
-            void ps_networkServerSelected(const QModelIndex &index);
+            void ps_serverSelected(const QModelIndex &index);
 
             //! Alter traffic server
             void ps_alterTrafficServer();