Convert CAS urls to new UNL Shib CAS urls.

library/Unl/Controller/Action/Authenticate.php

@@ -147,7 +147,7 @@ abstract class Unl_Controller_Action_Authenticate extends Unl_Controller_Action
                 $serviceUrl .= $_SERVER['SERVER_NAME'] . $path;
             }
 
-            $adapter = new Unl_Cas($serviceUrl, 'https://login.unl.edu/cas');
+            $adapter = new Unl_Cas($serviceUrl, 'https://shib.unl.edu/idp/profile/cas');
         }
         
         return $adapter;

library/Unl/Controller/Plugin/Auth/Cas.php

@@ -81,7 +81,7 @@ class Unl_Controller_Plugin_Auth_Cas extends Zend_Controller_Plugin_Abstract
         }
         
         // Init the CAS Adapter.
-        $casAdapter = new Unl_Cas($serviceUrl, 'https://login.unl.edu/cas');
+        $casAdapter = new Unl_Cas($serviceUrl, 'https://shib.unl.edu/idp/profile/cas');
         
         // If either the user has no ticket, the ticket is expired, or a user isn't logged in, go ahead with transparent login.
         if ($casAdapter->isTicketExpired() || !Zend_Auth::getInstance()->hasIdentity()) {