security: Introduce hierarchical validator

Change-Id: Ie99abc2b8de4ff227c21e34fef19544c01a9f5dd
diff --git a/src/controller.cpp b/src/controller.cpp
index a21a621..f716ada 100644
--- a/src/controller.cpp
+++ b/src/controller.cpp
@@ -630,7 +630,9 @@
                      chatPrefix,
                      m_localPrefix,
                      chatroomName.toStdString(),
-                     m_nick);
+                     m_nick,
+                     true,
+                     m_identity);
 
   addChatDialog(chatroomName, chatDialog);
   chatDialog->show();