code: function parseString (xml, callback) {
    var doc, error, plist;
    try {
      doc = new DOMParser().parseFromString(xml);
      plist = parsePlistXML(doc.documentElement);
    } catch(e) {
      error = e;
    }
    callback(error, plist);
  }
docs: Parses a Plist XML string. Returns an Object. Takes a `callback` function.
  
  @param {String} xml - the XML String to decode
  @param {Function} callback - callback function
  @returns {Mixed} the decoded value from the Plist XML
  @api public
  @deprecated not actually async. use parse() instead