preparing 2.6.24 release, fixed Python paths at the last moment fix some

* NEWS configure.in doc//*: preparing 2.6.24 release, fixed Python
  paths at the last moment
* relaxng.c testapi.c tree.c: fix some comments
Daniel
diff --git a/tree.c b/tree.c
index 3f11c2e..8a6b63a 100644
--- a/tree.c
+++ b/tree.c
@@ -8675,6 +8675,7 @@
 * @resNode: the clone of the given @node
 * @destDoc: the destination doc
 * @destParent: the optional new parent of @node in @destDoc
+* @deep: descend into child if set
 * @options: option flags
 *
 * References of out-of scope ns-decls are remapped to point to @destDoc: