added info about the new web-struts module

spring-framework-reference/src/new-in-3.xml

@@ -139,6 +139,10 @@
       <listitem>
         <para>org.springframework.web.servlet</para>
       </listitem>
+
+      <listitem>
+        <para>org.springframework.web.struts</para>
+      </listitem>
     </itemizedlist>
 
     <sidebar id="new-in-3-intro-spring-jar">

spring-framework-reference/src/overview.xml

@@ -187,7 +187,7 @@ TR: This section doesn't read well and I think we should try to rewrite it.-->Nu
       <title>Web</title>
 
       <para>The <emphasis>Web</emphasis> layer consists of the Web,
-      Web-Servlet, and Web-Portlet modules.</para>
+      Web-Servlet, Web-Struts, and Web-Portlet modules.</para>
 
       <para>Spring's <emphasis>Web</emphasis> module provides basic
       web-oriented integration features such as multipart file-upload
@@ -204,6 +204,12 @@ TR: This section doesn't read well and I think we should try to rewrite it.-->Nu
       Framework.<!--MVC allows you to use *all other features*? (Or just all other features in Web layer?) How do you mean? Does this need elaboration? 
 It sounds important.--><!--TR: REVISED, PLS REVIEW.--></para>
 
+      <para>The <emphasis>Web-Struts</emphasis> module contains the support 
+      classes for integrating a classic Struts web tier within a Spring application.
+      Note that this support is now deprecated as of Spring 3.0. Consider
+      migrating your application to Struts 2.0 and its Spring integration or
+      to a Spring MVC solution.</para>
+
       <para>The <emphasis>Web-Portlet</emphasis> module provides the MVC
       implementation to be used in a portlet environment and mirrors the
       functionality of Web-Servlet module.<!--mirrors it in what way?--><!--TR: REVISED, PLS REVIEW. The functionality is mirrored - one for Servlets and the other for Portlets--></para>