updated a bit made a comment more specific more work on the Schemas

* TODO: updated a bit
* parser.c: made a comment more specific
* xmlregexp.c xmlschemas.c xmlschemastypes.c: more work on the
  Schemas conformance.
* test/schemas result/schemas: updated the test list
Daniel
diff --git a/parser.c b/parser.c
index 4601997..027643f 100644
--- a/parser.c
+++ b/parser.c
@@ -9943,8 +9943,8 @@
  * It use the given SAX function block to handle the parsing callback.
  * If sax is NULL, fallback to the default DOM tree building routines.
  *
- * User data (void *) is stored within the parser context, so it is
- * available nearly everywhere in libxml.
+ * User data (void *) is stored within the parser context in the
+ * context's _private member, so it is available nearly everywhere in libxml
  *
  * Returns the resulting document tree
  */