(next_free_num): Changed type from int to Conf_no.
(next_text_num): Changed type from int to Text_no.
(read_person): Flag unused parameters.
(read_conference): Likewise.
(read_text_stat): Likewise.
(cached_get_text_stat): Adjusted printf format according to
	the next_text_num change.
(init_cache): Likewise.
(free_match_table): Renamed a parameter name to avoid
	warnings from gcc.
(build_matching_info): Renamed a local variable name to avoid
	warnings from gcc.
(pre_sync): Use tno_iter and cno_iter instead of i to get all
	types correct.
(post_sync): Likewise.
(copy_file): Flag unused parameters.