Provide an overridable notion of admin-ness.

git-svn-id: https://samskivert.googlecode.com/svn/trunk@1959 6335cc39-0255-0410-8fd6-9bcaacd3b74c

src/java/com/samskivert/servlet/user/User.java

@@ -152,6 +152,15 @@ public class User
         return (-1 != username.indexOf('='));
     }
 
+    /**
+     * Returns true if this user is an admin, false otherwise. The default
+     * implementation does not track admin status and always returns false.
+     */
+    public boolean isAdmin ()
+    {
+        return false;
+    }
+
     /**
      * Called by the repository to find out which fields have been
      * modified since the object was loaded.