/** Reads the preferences file and starts listening to the network table */
 public static void init() {
   read();
   table.addTableListener(
       new ITableListener() {
         @Override
         public void valueChanged(ITable source, String key, Object value, boolean isNew) {
           // Make sure the code knows all the keys
           if (!keys.contains(key)) keys.add(key);
         }
       },
       true);
 }