- adding builtin[alias]db.

- adding builtin[alias]db.

- lib/sids.c:

	generate_sam_sid() modified to take a domain name: it now
	generates "DOMAIN_NAME.SID".  reasons:

	1) if you run multiple samba servers on the same machine
	under different netbios names as members of a domain,
	they won't all use the same SID, which is a _big_ mistake
	but it would happen _by default_.

	2) we have (had) a problem with sid_to_string() and string_to_sid()
	which cause SIDs to be incorrectly read.  one of the major
	reasons for *NOT* making this change was so as not to disrupt
	existing users.  but as they will be anyway by this bug,
	we might as well go ahead.

- passdb/smbpass.c:

	wanted to change the meaning of the name in the smbpasswd
	file to an "nt" name not a "unix" name.  this is probably
	not a good idea: reverted this.

- output formatting / bug-fixing in rpcclient query_useraliases code.
(This used to be commit e4930f5f48f8246ceec8add8bf769954a963190c)