correction of 9i porting. The call to plsql proc deleted was replaced by del. However, deleted is different from delete. Changing back to deleted so that the acs rel is not deleted but state is changed to deleted (is this confusing or what...).
Configure all parameters for an authority on a single page, to allow sharing of parameter values across implementations (useful if all the drivers talk to the same server, as is normally the case)
Rewrote the code that builds the tree representation of the privileges, since the initial version was based on the false assumption that children could only appear once in the tree. Fixes #887.