(delete_list_append): New static function.
(execute_deletions): New static function.
(check_misc_infos): Adjusted to the fact that the texts member of
	Conference is now a l2g.
(adjust_text_list): Deleted.
(check_created_texts): The "created" argument now points to a
	Local_to_global.  Removed the check for "bad created_texts array"
	since it can no longer be bad in that way.
(check_membership): Adjusted to the fact that the texts member of
	Conference is now a l2g.
(check_texts_in_conf): The "tlist" argument now points to a
	Local_to_global.  Removed the check for "bad created_texts array"
	since it can no longer be bad in that way.