Moving sitemesh decorator over to sitemesh plugin, changing debug interceptor to only store stack in

session when first invoked, documentation updates to code behind plugin
WW-1546 WW-1483


git-svn-id: https://svn.apache.org/repos/asf/struts/struts2/trunk@483839 13f79535-47bb-0310-9956-ffa450edef68

plugins/codebehind/src/main/java/org/apache/struts2/codebehind/CodebehindUnknownHandler.java

@@ -48,6 +48,9 @@ import com.opensymphony.xwork2.config.entities.ResultTypeConfig;
 import com.opensymphony.xwork2.config.providers.InterceptorBuilder;
 import com.opensymphony.xwork2.inject.Inject;
 
+/**
+ * Uses code-behind conventions to solve the two unknown problems.  
+ */
 public class CodebehindUnknownHandler implements UnknownHandler {
 
     protected String defaultPackageName = "codebehind-default";

plugins/codebehind/src/main/resources/struts-plugin.xml

@@ -3,7 +3,7 @@
 <!DOCTYPE struts PUBLIC
     "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
     "http://struts.apache.org/dtds/struts-2.0.dtd">
-    
+
 <struts>
     <bean type="com.opensymphony.xwork2.UnknownHandler" class="org.apache.struts2.codebehind.CodebehindUnknownHandler" />