Old code applied sync flags to store(), however supported DBMs
require such flags to be specified during open().  The new
code now applies flags in ldbm_cache_open (which calls ldbm_open).
ldbm_cache_close() now calls ldbm_sync().  This will force
a updating of on-disk contents after each LDAP operation.
The old code either failed to sync the on-disk contents until
close or synced on every store.   Per LDBM operation syncing
*should* be safe enough... real data safety requires transactions.
Removed nosync option from BDB2 as it is not compatible with
txn support.
Also added code to disable DBM level locking as slapd is only
process acessing the databases (dbnolocking).

to go through and find/fix buffer overflows and such.

Insert reference to ITS webpage

	-C chase with prompting
	-CC chase without prompting
	-R don't chase
with defaults dependent upon authentication method used.
rebind callback also needs to be extended to support SASL and
provide information for prompting purposes.  Good intro project.

ldif updates (add URL description).

Remove man pages for old ldbm tools.