(copy_text_list): Removed.
(clear_conference): Adjusted to the fact that the texts member of
	Conference is now a l2g.
(init_conference): Likewise.
(copy_conference): Likewise.  Added const qualifier to the argument.
(clear_person): Adjusted to the fact that the created_texts member
	of Person is now a l2g.
(copy_person): Likewise.
(init_person): Likewise.
(init_text_list): Removed.
(copy_aux_item_list): Added const qualifier to the src argument.