cases and never used.

everywhere.  Tighten the rules so that secret info cannot leak through
get-text-stat.  Re-indent text.c.  Add a few const qualifiers all over
the code.

	Give authors special privileges regarding bcc-recpts.

	same visibility is used by async-sub-recipient and get-text-stat.
(filter_secret_info): Don't allow the author of a text to see
	bcc-recpt which are secret to him.  Simplify the code slightly.
(send_async_add_recipient): Use filter_secret_info() so that the
	exact same visibility is used by async-add-recipient and
	get-text-stat.

(count_recipients): const qualifiers added to some arguments.  Code simplified.
(count_footn): Likewise.
(count_comment): Likewise.
(text_read_access): Code clarified.
(delete_text): Likewise.
(find_recipient): qualifiers added to some arguments.
(is_comment_to): Likewise.
(is_footnote_to): Likewise.
(submit_to): Likewise.
(is_member_in_recpt): Likewise.
(send_async_sub_recipient): Likewise.
(sender): Likewise.
(is_sender): Likewise.
(is_comm_sender): Likewise.
(check_footn): Likewise.
(check_comm): Likewise.
(locate_mark): Likewise.
(skip_recp): Likewise.
(recp_sent_by): Likewise.
(filter_secret_info): Likewise.
(send_async_deleted_text): Likewise.
(check_double_subm): Likewise.
(check_double_comm): Likewise.
(send_async_new_text_old): Likewise.
(send_async_new_text): Likewise.
(send_async_add_recipient): Likewise.

(access_perm): Likewise.
(locate_membership): Likewise.

(is_strictly_supervisor): Likewise.

(is_supervisor): Likewise.
(is_strictly_supervisor): Likewise.
(locate_membership): Likewise.

(aux_inherit_items): const qualifiers added to some arguments.
(aux_item_add_perm): Likewise.
(prepare_aux_item): Likewise.
(find_aux_item_definition): Likewise.
(aux_item_find_trigger): Likewise.
(aux_item_find_validator): Likewise.
(find_aux_item): Likewise.
(filter_aux_item_list): Likewise.
(delete_aux_item_list): Likewise.
(undelete_aux_item_list): Likewise.
(check_delete_aux_item_list): Likewise.

get-session-info and who-is-on family of functions.  Test cases added.

(15.exp): New target.
(check_DATA): New target.  Added 15.exp.

(EXTRA_DIST): Moved all files in lyskomd.0 to that makefile.
(check-lyskomd): Depend on check-recursive.

using glibc-2.1.3 and gcc-2.95.2.  Create
src/server/testsuite/lyskomd.0/Makefile.

Documented the allowed-content-type aux item.

(kill_client): Check dummy_aux_item.data and aux_item.data.

	allowed-content-type aux item.

	database won't be saved even at normal server shutdown.