Rewriting acs_permission__permission_p function to use recursive queries ( available in PG since 8.4 ) and modifiying queries around core packages to avoid checking persmissions using a subquery on the acs_object_party_privilege_map view.
- abstract in check for existance of a command whether this is scripted or not - reduce stress on util-memoize cache to improve scalability - use a more modern tcl command set - prefer "string match" over "regexp"