Added header to .rng file

SDT/schema3.0/src/domain.rng

+<!--
+  -- domain.rng
+  --
+  -- Version 3.0
+  --
+  -- This work is released by the Smarthome Task Force of the HGI (Home
+  -- Gateway Initative), October 2015.
+  -- The work is created and released under the Apache License Version 2.0 .
+  -- See the license text at http://www.apache.org/licenses/LICENSE-2.0 for
+  -- full details.
+  -->
+
 <grammar xmlns="http://relaxng.org/ns/structure/1.0"
 	datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
  

SDT/schema3.0/src/domain.xsd

 <?xml version="1.0" encoding="UTF-8"?>
 <xs:schema targetNamespace="http://homegatewayinitiative.org/xml/dal/3.0" 
+	   xmlns="http://homegatewayinitiative.org/xml/dal/3.0" 
+	   targetNamespace="http://homegatewayinitiative.org/xml/dal/3.0" 
+	   xmlns="http://homegatewayinitiative.org/xml/dal/3.0" 
+	   targetNamespace="http://homegatewayinitiative.org/xml/dal/3.0" 
 	   xmlns="http://homegatewayinitiative.org/xml/dal/3.0" 
 	   xmlns:xs="http://www.w3.org/2001/XMLSchema" 
 	  
+ 
+	  
+ 
+	  
  elementFormDefault="qualified">
-  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2001/03/xml.xsd"/>
+  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2001/03/http://www.w3.org/2001/03/http://www.w3.org/2001/03/xml.xsd"/>
   <xs:element name="Domain">
     <xs:complexType>
       <xs:sequence>