Fixed allow new user comments setting.

src/main/webapp/xnat-templates/screens/register_box.vm

@@ -50,7 +50,7 @@
         <label for="lab">Study Site or Lab</label>
         <input type="text" name="lab" value="$!lab">
     </p>
-    #if($turbineUtils.toBoolean($siteConfig.getProperty("UI.allow-new-user-comments","true")))
+    #if($siteConfig.getUiAllowNewUserComments())
         <hr/>
         <p>Please include a brief description of how you plan to use this site.</p>
         <p>