update elements and fix some bugs

lib/google_map_directions.dart

 // DO NOT EDIT: auto-generated with `pub run custom_element_apigen:update`
 
 /// Dart API for the polymer element `google_map_directions`.
 @HtmlImport('google_map_directions_nodart.html')
 library polymer_elements.lib.src.google_map.google_map_directions;
 
 import 'dart:html';
 import 'dart:js' show JsArray, JsObject;
 import 'package:web_components/web_components.dart';
 import 'package:polymer_interop/polymer_interop.dart';
@@ skipping 30 matching lines @@
   set endAddress(String value) { jsElement[r'endAddress'] = value; }
 
   /// The localized language to load the Maps API with. For more information
   /// see https://developers.google.com/maps/documentation/javascript/basics#Language
   ///
   /// Note: the Maps API defaults to the preffered language setting of the browser.
   /// Use this parameter to override that behavior.
   String get language => jsElement[r'language'];
   set language(String value) { jsElement[r'language'] = value; }
 
-  /// A comma separated list (e.g. "places,geometry") of libraries to load
-  /// with this map. Defaults to "places". For more information see
-  /// https://developers.google.com/maps/documentation/javascript/libraries.
-  ///
-  /// Note, this needs to be set to the same value as the one used on <google-map>.
-  /// If you're overriding that element's `libraries` property, this one also
-  /// needs to be set to the Maps API loads the library code.
-  String get libraries => jsElement[r'libraries'];
-  set libraries(String value) { jsElement[r'libraries'] = value; }
-
   /// The Google map object.
   get map => jsElement[r'map'];
   set map(value) { jsElement[r'map'] = (value is Map || (value is Iterable && value is! JsArray)) ? new JsObject.jsify(value) : value;}
 
+  /// Options for the display of results
+  get rendererOptions => jsElement[r'rendererOptions'];
+  set rendererOptions(value) { jsElement[r'rendererOptions'] = (value is Map || (value is Iterable && value is! JsArray)) ? new JsObject.jsify(value) : value;}
+
   /// The response from the directions service.
   get response => jsElement[r'response'];
   set response(value) { jsElement[r'response'] = (value is Map || (value is Iterable && value is! JsArray)) ? new JsObject.jsify(value) : value;}
 
   /// Start address or latlng to get directions from.
   String get startAddress => jsElement[r'startAddress'];
   set startAddress(String value) { jsElement[r'startAddress'] = value; }
 
   /// Travel mode to use.  One of 'DRIVING', 'WALKING', 'BICYCLING', 'TRANSIT'.
   String get travelMode => jsElement[r'travelMode'];
   set travelMode(String value) { jsElement[r'travelMode'] = value; }
 
   /// Array of intermediate waypoints. Directions will be calculated
   /// from the origin to the destination by way of each waypoint in this array.
   /// The maximum allowed waypoints is 8, plus the origin, and destination.
   /// Maps API for Business customers are allowed 23 waypoints,
   /// plus the origin, and destination.
   /// Waypoints are not supported for transit directions. Optional.
   List get waypoints => jsElement[r'waypoints'];
   set waypoints(List value) { jsElement[r'waypoints'] = (value != null && value is! JsArray) ? new JsObject.jsify(value) : value;}
 }