slightly rework user/operational attributes handling (including fixing a bug in the logic of the previous change to backend_operational()); cleanup; more improvements to slapo-rwm and back-relay

Split glue test in two.
Remove (slurpd) subtree replication test.
Reorder syncrepl/proxy tests

A little rough around the edges still.

Need to hide cn=Monitor from namingContext

Based upon code submitted by Steve Omrani <somrani@us.ibm.com> (ITS#1525)

and wait. User must hit <NewLine> to continue. This gives the opportunity
to attach a debugger to the slapd before proceeding with the test.

one set of slapd.conf files.

Add -n option to slapd

Modify tests to use -h "ldap://localhost:port/" instead of -p port.

ldapsearch:
    use draft guidelines for determining when to use
    -t only writes binary attributes to files
    -tt writes all attributes to files
    output now lists URL instead of path to such files
    -T dir can be used to specify directory to create temp files in
    -V urlprefix can be used to change the URL prefix
    LDIF is now commented (can be disabled using -LL)
    LDIF now contains version attribute (can be disabled with -LLL)
LDIF:
    put interface changed to allow caller to specify how to encode
    put interface uses draft guidelines for determine when to base64 encode
    wrapping kludged to match old off by one bug
Tests:
    removed trailing space from some attributes (to avoid base64 encoding)
    enabled -LLL in defines.sh (should sed output to remove
        wrapping/comments/redundant separators)
Misc:
    updated codes outputting LDIF to use new put interface
TODO:
    handling of version attribute on input
    handling of URLs on input (ie: fetch URL)

	add MODRDN newSuperior support
	add '#' support to ldapmodify (but not slurpd and ldbm tools)

Includes support for update referral for each replicated backend.
	Reworked replication test to use update referral.
Includes major rewrite of response encoding codes (result.c).
Includes reworked alias support and eliminates old suffix alias codes
(can be emulated using named alias).
Includes (untested) support for the Manage DSA IT control.
Works in LDAPv2 world.  Still testing in LDAPv3 world.
Added default referral (test009) test.

tests: use "ldapadd" instead of "ldapmodify -a"

'make bdb2' tests only BDB2
'make ldbm' tests only LDBM
Fix up scripts (previous changes broke BDB2 testing)

slapd server timing via a new slapd command line option '-t'.

Integration into ./configure ( --enable-bdb2 ).
Adaptation of the test-suite ( 'make' -> ldbm; 'make bdb2-local' -> bdb2 ).
Minor fixes in slapd/libldbm.