code: function parentFolder(fullPath) {
    var isFile = arguments.length <= 1 || arguments[1] === undefined ? false : arguments[1];
  
    // If no path passed in, use the file path of the
    // caller.
    if (!fullPath) {
      fullPath = module.parent.filename;
      isFile = true;
    }
  
    var pathObj = _path2['default'].parse(fullPath);
  
    if (isFile) {
      return pathObj.dir.split(_path2['default'].sep).slice(-1)[0];
    }
  
    return pathObj.name;
  }
docs: Get the name of the parent folder. If given a directory
  as a path, return the last directory. If given a path
  with a file, return the parent of that file. Default
  to the parent folder of the call path.
  
  @module parentFolder
  @param {String} [fullPath=module.parent.filename] The full path to find the parent folder from
  @param {Boolean} [isFile=false] Flag to indicate passed in path is to a file not a folder
  @returns {String} The parent folder's name