with ldapi:// sessions.

Still failing on Freebsd 4.

this change seems to causes test007 to fail on some systems
(e.g., FreeBSD 4).

Should reuse other DN routines.
Need to add various other DN matching rule functions.
This commit, combined with entryDN and slapcat -a, should
fully address ITS#3112.

	(entryDN:isSubordinate:=dc=example,dc=net)
isSubordinate should be implemented in component matching terms

extensible matching (the main objective) coming soon.
(This stuff should really be table driven (for extensibility reasons).)

Need to implement filter support (for entryDN and subschemaSubentry).
Fixed hasSubordinate assert() bug in entry filters

Fix ITS#3285 (relative linking of slap tools).

need a lot of space for stress tests; need to bind for searches to avoid size limits and so; log failure reason