General refactorings and improvements to namespace support, including

autoDetect="true" attribute for <http> element.

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

@@ -11,23 +11,27 @@
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
                         http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-2.0.xsd">
-
-    <http>
+
+    <http>
         <intercept-url pattern="/secure/extreme/**" access="ROLE_SUPERVISOR"/>
         <intercept-url pattern="/secure/**" access="IS_AUTHENTICATED_REMEMBERED" />
         <intercept-url pattern="/**" access="IS_AUTHENTICATED_ANONYMOUSLY" />
-
+
+		<!-- All of this is unnecessary if autoConfig="true"-->
         <form-login />
         <anonymous />
         <http-basic />
-        <logout />
+        <logout />
+        <remember-me />
+ 		
         <concurrent-session-control maxSessions="1" exceptionIfMaximumExceeded="true"/>
 
-        <remember-me key="doesntmatter"/>
-    </http>
- <!--
+    </http>
+
+	<!--    
     <beans:bean name="tokenRepo" class="org.springframework.security.ui.rememberme.InMemoryTokenRepositoryImpl"/>
--->
+	-->
+
 	<repository>
 	    <user-service>
 	        <user name="bob" password="bobspassword" authorities="ROLE_SUPERVISOR" />