Remove the ability to change users' usernames when using CAS.

git-svn-id: file:///tmp/wdn_thm_drupal/branches/drupal-7.x@159 20a16fea-79d4-4915-8869-1ea9d5ebf173

sites/all/modules/unl/unl_cas.module

@@ -91,6 +91,10 @@ function unl_cas_form_alter(&$form, $form_state, $form_id)
     }
     
     if ($form_id == 'user_profile_form') {
+        if (isset($form['account']['name'])) {
+            $form['account']['name']['#type'] = 'hidden';
+        }
+
         $form['account']['pass']['#type'] = 'hidden';
         $form['account']['current_pass_required_values']['#type'] = 'hidden';
         $form['account']['current_pass']['#type'] = 'hidden';