lber: ifdef'ed out lber_..set_nonblock() function because it used ioctl's.
  If it remains, it needs to be written to support various methods for
  setting non-blocking.  ioctls should probably be last choice.  configure
  could detect existance of fcntl(), ioctl(), etc.
bdb2:
  added .dsp/.dsw files and did some basic cleanup (still needs work).

2. Make ldbm_Env a failure-safe entity.

LDAP v3 MODDN request.

carry it. This in preparation to support LDAP v3 MODDN
request.

int add_values LDAP_P(( Entry *e, LDAPMod *mod, char *dn ));
int delete_values LDAP_P(( Entry *e, LDAPMod *mod, char *dn ));
int replace_values LDAP_P(( Entry *e, LDAPMod *mod, char *dn ));
to
int bdb2i_add_values LDAP_P(( Entry *e, LDAPMod *mod, char *dn ));
int bdb2i_delete_values LDAP_P(( Entry *e, LDAPMod *mod, char *dn ));
int bdb2i_replace_values LDAP_P(( Entry *e, LDAPMod *mod, char *dn ));
So that ldbm and db2 backends can coexist.

int add_values LDAP_P(( Entry *e, LDAPMod *mod, char *dn ));
int delete_values LDAP_P(( Entry *e, LDAPMod *mod, char *dn ));
int replace_values LDAP_P(( Entry *e, LDAPMod *mod, char *dn ));
to
int bdb2i_add_values LDAP_P(( Entry *e, LDAPMod *mod, char *dn ));
int bdb2i_delete_values LDAP_P(( Entry *e, LDAPMod *mod, char *dn ));
int bdb2i_replace_values LDAP_P(( Entry *e, LDAPMod *mod, char *dn ));
So that ldbm and db2 backend can coexist

8.9 style configuration via MAILER(mail500).

same code (commented out).

v3 MODDN (MODRDN) operation on the client side.

a MODDN or MODRDN request depending on the newSuperior parameter.

ldapmodrdn so that it can take the newparent parameter. (Check -s option)

utility functions added to support the modrdn v3 implementation.
These parse and rdn of the form "attribute_type = attribute_value"
returning "attribute_type" and "attribute_value" respectively.

are needed in the implementation of modrdn v3.

used in implementing modrdn v3.

construction which may be useful later when adding new tags. This
in preparation to support moddn v3.

used in implementing modrdn v3.

for implementing modrdn v3.

from what the current code can handle.

Use pthread_*attr_default.
Don't use a void return value from pthread_yield.