Updated schema verisions to 2.0.4

src/docbkx/namespace-config.xml

@@ -45,7 +45,7 @@
   xmlns:security="http://www.springframework.org/schema/security"
   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-2.0.2xsd">  
+              http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-2.0.4.xsd">  
     ...
 </beans>
   ]]></programlisting>
@@ -60,7 +60,7 @@
   xmlns:beans="http://www.springframework.org/schema/beans"
   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-2.0.2.xsd"> 
+              http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-2.0.4.xsd"> 
     ...
 </beans:beans>
 ]]></programlisting>