hide registration tab for unauthed users

pyweb/mumble/templates/mumble/mumble.html

@@ -106,7 +106,9 @@
                     items: [{
                         title: gettext("Server info"),
                         html:  renderserverinfos( {{ ServerDict|safe }} ),
-                    }, {
+                    },
+                    {% if user.is_authenticated %}
+                        {
                             title: gettext("Registration"),
                             xtype: "{{ RegForm|lower }}",
                             pk: {% if MumbleAccount %}{{ MumbleAccount.id }}{% else %}-1{% endif %},
@@ -187,6 +189,7 @@
                                 }
                             {% endif %}
                         {% endif %}
+                    {% endif %}
                     ],
                 }],
             });