fix double delete in xml element
diff --git a/tinyxml2.h b/tinyxml2.h
index 779fdde..100ade0 100644
--- a/tinyxml2.h
+++ b/tinyxml2.h
@@ -122,6 +122,7 @@
 

 protected:

 	XMLNode( XMLDocument* );

+	void Unlink( XMLNode* child );

 

 	XMLDocument*	document;

 	XMLNode*		parent;