checking that item_id is a valid integer iff it has been provided.
Removing unneeded emptiness check against item_id. 'string is integer' w/out the -strict switch returns 1 in case variable is empty.
- use naviserver's urldecode when available (for speed and currectness)
- prefer bindar emulation over dollar-substitution
- bump version number
- update dependency on xotcl-core
- use faster sql interface
- fix typo
- make use of ::xo::db_list* functions