Ticket 47620 - 389-ds rejects nsds5ReplicaProtocolTimeout attribute
    
    Bug Description:  Attempting to add/modify/delete nsds5ReplicaProtocolTimeout
                      results in an error 53 (unwilling to perform).
    
    Fix Description:  Allow nsds5ReplicaProtocolTimeout to be updated in agreements
                      and the replica configuration.  Also, made the config timeout
                      setting dynamic.
    
    https://fedorahosted.org/389/ticket/47620
    
    Reviewed by: rmeggins(Thanks!)
    (cherry picked from commit 58fca2c4e4f2120cb6e5fb249008be8f551e944c)
    (cherry picked from commit 490360fd96121d06fa8813e182b44d045257be98)