instantiation.xml in cpee-1.4.10

- old
+ new

@@ -1,7 +1,6 @@
 <description datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes" xmlns="http://riddl.org/ns/description/1.0" xmlns:xi="http://www.w3.org/2001/XInclude">
-
   <message name="xmlsimple">
     <parameter name="xml" mimetype="*/xml"/>
   </message>
   <message name="xml">
     <parameter name="behavior" type="string">
@@ -61,9 +60,14 @@
     <resource relative="instance">
       <post in="instance" out="result"/>
     </resource>
     <resource relative="url">
       <post in="url" out="result"/>
+    </resource>
+    <resource relative="callback">
+      <resource>
+        <post/>
+      </resource>
     </resource>
   </resource>
 
 </description>