Fix namespace contamination, some comments added.

modrdn.

someone better comes up with a solution for this replication soon!

code by mistake.

LDAP_OPT_MATCH_STRING to ldap.h and libldap/options.c.

Tag Julio for schema work.

Add #undef and other protection of macros.

inherited on accept().

Untested support for parsing attribute type definitions

Initial incomplete and broken version.

 added comments
 removed LDAP_MAX_ATTR_LEN
 removed LDAP_COMPAT* from <ldap.h> but not code.
 move LDAP_DEFAULT_REFHOPCOUNT to ldap-int.h
 added experimental options macros
 added LDAP_CONTROL_REFERRALS macros
libldap:
 Replace ld_attrbuffer with per use allocated attributed.
 ldap_first/next_attribute attributes now must be freed (as per draft).
 unifdef -DLDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS

s/VERSION/OPENLDAP_VERSION/
manually define for NT.  Should sort out mechanism for one place
updating of package/version strings.