ContactgroupQuery: Provide case-insensitive filter column `service_host'

refs #8613

modules/monitoring/library/Monitoring/Backend/Ido/Query/ContactgroupQuery.php

@@ -39,6 +39,7 @@ class ContactgroupQuery extends IdoQuery
         'services' => array(
             'service'               => 'so.name2 COLLATE latin1_general_ci',
             'service_description'   => 'so.name2',
+            'service_host'          => 'so.name1 COLLATE latin1_general_ci',
             'service_host_name'     => 'so.name1'
         )
     );

modules/monitoring/library/Monitoring/DataView/Contactgroup.php

@@ -61,6 +61,6 @@ class Contactgroup extends DataView
 
     public function getFilterColumns()
     {
-        return array('contactgroup', 'contact', 'host', 'service');
+        return array('contactgroup', 'contact', 'host', 'service', 'service_host');
     }
 }