Upgrade Notifications to fix deprecations and use store

test/javascripts/models/rest-model-test.js.es6

@@ -36,7 +36,7 @@ test('updating simultaneously', function() {
   expect(2);
 
   const store = createStore();
-  store.find('widget', 123).then(function(widget) {
+  return store.find('widget', 123).then(function(widget) {
 
     const firstPromise = widget.update({ name: 'new name' });
     const secondPromise = widget.update({ name: 'new name' });
@@ -90,7 +90,7 @@ test('creating simultaneously', function() {
 
 test('destroyRecord', function() {
   const store = createStore();
-  store.find('widget', 123).then(function(widget) {
+  return store.find('widget', 123).then(function(widget) {
     widget.destroyRecord().then(function(result) {
       ok(result);
     });

test/javascripts/models/result-set-test.js.es6

@@ -20,6 +20,7 @@ test('pagination support', function() {
     equal(rs.get('totalRows'), 4);
     ok(rs.get('loadMoreUrl'), 'has a url to load more');
     ok(!rs.get('loadingMore'), 'it is not loading more');
+    ok(rs.get('canLoadMore'));
 
     const promise = rs.loadMore();
 
@@ -28,6 +29,7 @@ test('pagination support', function() {
       ok(!rs.get('loadingMore'), 'it finished loading more');
       equal(rs.get('length'), 4);
       ok(!rs.get('loadMoreUrl'));
+      ok(!rs.get('canLoadMore'));
     });
   });
 });