Tidying up some stuff in tutorial app

samples/tutorial/src/main/webapp/WEB-INF/applicationContext-security.xml

@@ -12,7 +12,7 @@
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
                         http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-2.5.xsd">
 
-    <global-method-security spel-annotations="enabled">
+    <global-method-security expression-annotations="enabled">
         <!-- AspectJ pointcut expression that locates our "post" method and applies security that way
         <protect-pointcut expression="execution(* bigbank.*Service.post*(..))" access="ROLE_TELLER"/>
         -->