val print : Config.config -> Gwdb.base -> unit
(** Displays a form where all person's children with their first names, surnames and occurence numbers are listed
    and could be modified on submit. Id of person should be mentionned in environement [conf.env] with binding {i "ip"=id}
    otherwise displays Bad request page. *)

val print_ok : Config.config -> Gwdb.base -> unit
(** Performs and displays results of children modification requested by form submiting. If changes of one of children raises an error
    displays corresponding error page that either just informs user about error source either propose to fix up solution. *)