more update for i18n better support

set lang and content info in order to support i18n better.
diff --git a/src/main/resources/archetype-resources/src/main/webapp/templates/app/layouts/Default.vm b/src/main/resources/archetype-resources/src/main/webapp/templates/app/layouts/Default.vm
index 7a5befc..9597bcb 100644
--- a/src/main/resources/archetype-resources/src/main/webapp/templates/app/layouts/Default.vm
+++ b/src/main/resources/archetype-resources/src/main/webapp/templates/app/layouts/Default.vm
@@ -19,7 +19,8 @@
 $page.addStyleSheet("http://www.w3schools.com/lib/w3-theme-blue-grey.css")
 $page.setTitle("Sample Apache Turbine Application")
 $page.addScript($ui.getScript("page.js"))
-<html>
+<html lang="$l10n.Locale">
+<meta http-equiv="Content-type" content="$data.ContentType" />
 
 #TurbineHtmlHead()