Conpherence notifications - fix ordering

Summary: we get participation data ordered, then query conpherences by phid... be sure to resort the conpherences based on participation data. I missed this in testing 'cuz my test data is so trashy, but it is glaringly obvious in production. :/

Test Plan: replied to a very old conpherence and noted it was first in the notification panel

Reviewers: chad, epriestley

Reviewed By: epriestley

CC: Korvin, aran

Maniphest Tasks: T3641

Differential Revision: https://secure.phabricator.com/D6711

Author: bobtrahan

src/applications/conpherence/controller/ConpherenceNotificationPanelController.php

@@ -28,6 +28,9 @@ public function processRequest() {
 
     if ($conpherences) {
       require_celerity_resource('conpherence-notification-css');
+      // re-order the conpherences based on participation data
+      $conpherences = array_select_keys(
+        $conpherences, array_keys($participant_data));
       $view = new AphrontNullView();
       foreach ($conpherences as $conpherence) {
         $p_data = $participant_data[$conpherence->getPHID()];