Ticket 48850 - Correct memory leaks in pwdhash-bin and ns-slapd
    
    Bug Description:  pwdhash-bin had two memory leaks in the handling of strings
    and password types. We also leaked plugin component id's and the name of
    password plugin types.
    
    Fix Description:  Free the data correctly.
    
    https://fedorahosted.org/389/ticket/48850
    
    Author: wibrown
    
    Review by: nhosoi (Thanks!)