Index: lams_admin/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -r1edbb81f16cedfcc1326e4eca6e520b5b48cbddc -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_admin/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision 1edbb81f16cedfcc1326e4eca6e520b5b48cbddc)
+++ lams_admin/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
+
 <tiles-definitions>
 	<definition name=".clone-result" path="/template.jsp">
 		<put name="title" value="title.clone.lessons"/>
Index: lams_central/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -rc8e76e0e04c3ed0df8c88b4b46ad4ac07897aaf0 -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_central/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision c8e76e0e04c3ed0df8c88b4b46ad4ac07897aaf0)
+++ lams_central/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
+
 <!--
 Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_gradebook/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -rd56929f06ad90a63082d514e6521adc175f3de27 -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_gradebook/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision d56929f06ad90a63082d514e6521adc175f3de27)
+++ lams_gradebook/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
+
 <tiles-definitions>
 	<definition name=".error" path="/template.jsp">
 		<put name="titleKey" value="heading.general.error"/>
Index: lams_learning/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -rda9d623352f3964daa5fe12f81a683b9377d286a -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_learning/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision da9d623352f3964daa5fe12f81a683b9377d286a)
+++ lams_learning/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
+
 <!--
 Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_monitoring/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -rd56929f06ad90a63082d514e6521adc175f3de27 -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_monitoring/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision d56929f06ad90a63082d514e6521adc175f3de27)
+++ lams_monitoring/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
 <!--
 Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_bbb/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -ref851974c4dc3f5468b188fab9997a37b73c0e50 -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_bbb/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision ef851974c4dc3f5468b188fab9997a37b73c0e50)
+++ lams_tool_bbb/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
 	<!--
 		Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org) License
 		Information: http://lamsfoundation.org/licensing/lams/2.0/ This
Index: lams_tool_chat/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -ref851974c4dc3f5468b188fab9997a37b73c0e50 -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_chat/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision ef851974c4dc3f5468b188fab9997a37b73c0e50)
+++ lams_tool_chat/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
 <!--
 	Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 	License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_forum/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -r6d674e346dea6ce7a824366c8a7c315660677744 -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_forum/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision 6d674e346dea6ce7a824366c8a7c315660677744)
+++ lams_tool_forum/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
 
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
+
 <!--
 Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_gmap/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -r6d674e346dea6ce7a824366c8a7c315660677744 -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_gmap/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision 6d674e346dea6ce7a824366c8a7c315660677744)
+++ lams_tool_gmap/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
 <!--
 	Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 	License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_kaltura/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -rbe07c35c372d904a65581d98660e73f3b13b69db -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_kaltura/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision be07c35c372d904a65581d98660e73f3b13b69db)
+++ lams_tool_kaltura/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,9 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
+        
 <!--
 	Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 	License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_leader/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -rbe07c35c372d904a65581d98660e73f3b13b69db -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_leader/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision be07c35c372d904a65581d98660e73f3b13b69db)
+++ lams_tool_leader/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
 <!--
 	Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 	License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_mindmap/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -rbe07c35c372d904a65581d98660e73f3b13b69db -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_mindmap/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision be07c35c372d904a65581d98660e73f3b13b69db)
+++ lams_tool_mindmap/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
 <!--
 	Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 	License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_nb/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -rd56929f06ad90a63082d514e6521adc175f3de27 -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_nb/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision d56929f06ad90a63082d514e6521adc175f3de27)
+++ lams_tool_nb/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
+
 <!--
 Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_notebook/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -r5fd25049d526080b60f6753a3d4603fb18913202 -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_notebook/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision 5fd25049d526080b60f6753a3d4603fb18913202)
+++ lams_tool_notebook/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
 <!--
 	Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 	License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_pixlr/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -rbe07c35c372d904a65581d98660e73f3b13b69db -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_pixlr/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision be07c35c372d904a65581d98660e73f3b13b69db)
+++ lams_tool_pixlr/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
 <!--
 	Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 	License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_scribe/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -rbe07c35c372d904a65581d98660e73f3b13b69db -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_scribe/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision be07c35c372d904a65581d98660e73f3b13b69db)
+++ lams_tool_scribe/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
 <!--
 	Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 	License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_videorecorder/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -r8b97231e320c0c5b674f07c14da711f232ba9e1c -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_videorecorder/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision 8b97231e320c0c5b674f07c14da711f232ba9e1c)
+++ lams_tool_videorecorder/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
 <!--
 	Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 	License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_wiki/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -r8b97231e320c0c5b674f07c14da711f232ba9e1c -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_wiki/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision 8b97231e320c0c5b674f07c14da711f232ba9e1c)
+++ lams_tool_wiki/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
 <!--
 	Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 	License Information: http://lamsfoundation.org/licensing/lams/2.0/
Index: lams_tool_wookie/web/WEB-INF/tiles-defs.xml
===================================================================
diff -u -r8b97231e320c0c5b674f07c14da711f232ba9e1c -rdbad8619d09c6a235f29d963d58b4c2310f82013
--- lams_tool_wookie/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision 8b97231e320c0c5b674f07c14da711f232ba9e1c)
+++ lams_tool_wookie/web/WEB-INF/tiles-defs.xml	(.../tiles-defs.xml)	(revision dbad8619d09c6a235f29d963d58b4c2310f82013)
@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
+
+<!DOCTYPE tiles-definitions PUBLIC
+        "-//Apache Software Foundation//DTD Tiles Configuration 1.3//EN"
+        "http://struts.apache.org/dtds/tiles-config_1_4.dtd">
 <!--
 	Copyright (C) 2005 LAMS Foundation (http://lamsfoundation.org)
 	License Information: http://lamsfoundation.org/licensing/lams/2.0/