code: private String getNodeStringDefault(String defaultValue, String attribute, String... path)
      {
          final Xml node = getNodeDefault(path);
          if (node != null && node.hasAttribute(attribute))
          {
              return node.readString(attribute);
          }
          return defaultValue;
      }
docs: Get the string from a node.
  
  @param defaultValue The default value returned if path not found.
  @param attribute The attribute to get.
  @param path The attribute node path.
  @return The string found.
  @throws LionEngineException If node not found.