Fixes/changes to compatibility wrapper

Fixed cwclasses to do a strict comparison to null in oldToNewDescriptionItem since that is what the called function is returning on error, prevents things like empty arrays from causing an error.

Changed two functions in cw.php:
1 - i5_spool_list - do not require an outq library use *LIBL if one is not provided
2 - listRead - remove error logging when no more entries found, just clogs the log.