New convenience check targets.

(access_perm): Log a warning if called with an unexpected
	wanted_access argument.

(check-leaks): New target.

    Eliminated calls to build_matching_info when creating, renaming
    and deleting conferences. Integrated the conf_table array into
    match_table.

    Name matcher can handle holes in the table.

Testing:
    Added some name lookup test cases.

Distribution:
    Distribute lyskomd tests 12.exp and 13.exp.

Documentation:
    sub-comment was incorrectly marked obsolete. Fixed.

fast_access_perm(), and updated all callers.
Turn of async messages during shutdown.

access_perm() instead of fast_access_perm().
(access_perm): Proof-of-concept implementation using
	plain_ol_access_perm and plain_ol_fast_access_perm.  This needs
	lots of clever speedups.

	higher than it.  All callers updated.
(fast_access_perm): Removed.  All callers changed to use access_perm instead.

Use access_perm() instead of fast_access_perm().

	this should eventually be fixed to d return a proper value.

	authors' list of created texts must be updated.

(lyskomd_death): Call dbck_run to check the database after each shutdown.

	numbers in the protocol specification.

	which isn't portable to FreeBSD.
(unanchored_expect): Don't leave an unparsed space behind when
	unexpected output appears before a prompt.

	portably be used as an array size.
(LINSIZE): Likewise.
(ARGS): Likewise.