Dashboard: add scheduled downtimes

library/Director/Dashboard/AlertsDashboard.php

@@ -8,6 +8,8 @@ class AlertsDashboard extends Dashboard
         'Notifications',
         'Users',
         'Timeperiods',
+        'DependencyObject',
+        'ScheduledDowntimeApply',
     );
 
     public function getTitle()

library/Director/Dashboard/Dashlet/ScheduledDowntimeApplyDashlet.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Icinga\Module\Director\Dashboard\Dashlet;
+
+class ScheduledDowntimeApplyDashlet extends Dashlet
+{
+    protected $icon = 'plug';
+
+    protected $requiredStats = ['scheduled_downtime'];
+
+    public function getTitle()
+    {
+        return $this->translate('Scheduled Downtimes');
+    }
+
+    public function getUrl()
+    {
+        return 'director/scheduled_downtimes/applyrules';
+    }
+}

library/Director/Dashboard/ObjectsDashboard.php

@@ -8,8 +8,6 @@ class ObjectsDashboard extends Dashboard
         'HostObject',
         'ServiceObject',
         'CommandObject',
-        // 'Notifications',
-        'DependencyObject',
     );
 
     public function getTitle()