code: function checkLocalPath(gameDir, subDir, filePath) {
      if (filePath.substring(0,2) === './') {
          return path.resolve(gameDir, subDir, filePath);
      }
      return filePath;
  }
docs: ## Helper methods 
  ### checkLocalPath
  
  Helper function to specify full path in a game subdir
  
  Checks if the file starts with './' and, if so, adds the absolute path
  to the game directory in front.
  
  @param {string} gameDir The absolute path of the game directory
  @param {string} subDir The name of the game sub directory
  @param {string} filePath The path of the file in the sub directory
  
  @return {string} The updated file path (if local)