Removed on delete cascade on folder_id of fs_root_folders (see datamodel comments why); also added a before and after trigger to clean up CR when package instance is deleted.
Added ns_xmlrpc-utils.tcl which checks for the existence of OpenACS utility procs that ns_xmlrpc depends on. If they aren't there it creates them. Now ns_xmlrpc should run on any AOLServer with nsxml using nsd8x