Improve actor icons handling and admin

app/templates/layout.html

@@ -25,6 +25,8 @@
         <li>{{ admin_link("index", "Public") }}</li>
         <li>{{ admin_link("admin_new", "New") }}</li>
         <li>{{ admin_link("stream", "Stream") }}</li>
+        <li>{{ admin_link("admin_inbox", "Inbox") }}</li>
+        <li>{{ admin_link("admin_outbox", "Outbox") }}</li>
         <li>{{ admin_link("get_notifications", "Notifications") }} {% if notifications_count %}({{ notifications_count }}){% endif %}</li>
         <li>{{ admin_link("get_lookup", "Lookup") }}</li>
         <li><a href="">Bookmarks</a></li>