Use shib CAS

plugins/cas_auth_unl/start.php

@@ -74,9 +74,9 @@ class elggSimpleCas {
             }
             // Setup CAS
             $config = find_plugin_settings('cas_auth_unl');
-            $options = array('hostname' => $config->casurl,
-                             'port'     => $config->casport,
-                             'uri'      => $config->casuri);
+            $options = array('hostname' => 'shib.unl.edu',
+                             'port'     => 443,
+                             'uri'      => 'idp/profile/cas';
             $protocol = new SimpleCAS_Protocol_Version2($options);
             $request = $protocol->getRequest();
             // SSL doesn't work right on login.unl.edu