- second part of Part 4 of OpenACS 5.9 agenda: get rid of tree_sortkey in acs-objects : getting rid of functions accessing acs_objects.tree_sortkey when creating new instances - use variable names "ot1" and "ot2" instead of "o1" and "o2" when referring to object_types (and not objects)
- scalability reform part 1 * remove manual delete operations from acs_object__delete() where update is as achieved automatcially via cascade operations * improve documentation of source code - bump version number to 5.9.0d2