Pass change options into update calls

We assume these options several places in the code, for example in the selection widget views, but we were never passing them through when we called the update method.

Author: jasongrout

packages/base/src/widget.ts

@@ -737,13 +737,13 @@ export class WidgetView extends NativeView<WidgetModel> {
    * Initializer, called at the end of the constructor.
    */
   initialize(parameters: WidgetView.IInitializeParameters): void {
-    this.listenTo(this.model, 'change', () => {
+    this.listenTo(this.model, 'change', (model, options) => {
       const changed = Object.keys(this.model.changedAttributes() || {});
       if (changed[0] === '_view_count' && changed.length === 1) {
         // Just the view count was updated
         return;
       }
-      this.update();
+      this.update(options);
     });
 
     this.options = parameters.options;