Add moment.js support

tests/unit/utils/date-helpers-test.js

@@ -0,0 +1,10 @@
+import dateHelpers from '../../../utils/date-helpers';
+import { module, test } from 'qunit';
+
+module('dateHelpers');
+
+// Replace this with your real tests.
+test('it works', function(assert) {
+  var result = dateHelpers();
+  assert.ok(result);
+});