Avoid a double-free situation when using the SAX load method.

Add missing contents.

mxml-file.c

@@ -3,7 +3,7 @@
  *
  * File loading code for Mini-XML, a small XML-like file parsing library.
  *
- * Copyright 2003-2010 by Michael R Sweet.
+ * Copyright 2003-2011 by Michael R Sweet.
  *
  * These coded instructions, statements, and computer programs are the
  * property of Michael R Sweet and are protected by Federal copyright
@@ -1946,7 +1946,8 @@ mxml_load_data(
         {
           (*sax_cb)(node, MXML_SAX_ELEMENT_CLOSE, sax_data);
 
-          mxmlRelease(node);
+          if (!mxmlRelease(node) && first == node)
+	    first = NULL;
         }
 
        /*

mxml-node.c

@@ -15,6 +15,22 @@
  *
  * Contents:
  *
+ *   mxmlAdd()         - Add a node to a tree.
+ *   mxmlDelete()      - Delete a node and all of its children.
+ *   mxmlGetRefCount() - Get the current reference (use) count for a node.
+ *   mxmlNewCDATA()    - Create a new CDATA node.
+ *   mxmlNewCustom()   - Create a new custom data node.
+ *   mxmlNewElement()  - Create a new element node.
+ *   mxmlNewInteger()  - Create a new integer node.
+ *   mxmlNewOpaque()   - Create a new opaque string.
+ *   mxmlNewReal()     - Create a new real number node.
+ *   mxmlNewText()     - Create a new text fragment node.
+ *   mxmlNewTextf()    - Create a new formatted text fragment node.
+ *   mxmlRemove()      - Remove a node from its parent.
+ *   mxmlNewXML()      - Create a new XML document tree.
+ *   mxmlRelease()     - Release a node.
+ *   mxmlRetain()      - Retain a node.
+ *   mxml_new()        - Create a new node.
  */
 
 /*