Ticket 48103 - update DS for new nunc-stans header file
    
    Description:  Remove references to ns_thrpool.h, and replace it with nunc-stans.h
    
                  Also the function params for ns_add_job needed to be updated.
    
    https://fedorahosted.org/389/ticket/48103
    
    Reviewed by: rmeggins(Thanks!)