Changes with simple and SASL binds

[<mi...@st...>]

HI!

Please take note of modifications to binding code in ldap.ldapobject and 
Modules/LDAPObject.c (see file CHANGES attached below) and bring your CVS 
working tree in sync and test!

Thanks for testing.

Also note that I rather dropped support for building with OpenLDAP 2.0 libs 
since 2.0 is not maintained anymore.

Ciao, Michael.

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Released 2.0.0pre21 2004-03-xx

Changes since 2.0.0pre20:

Modules/:
* Removed meaningless repr() function from LDAPObject.c
* Removed setting LDAP_OPT_PROTOCOL_VERSION in l_ldap_sasl_bind_s()
* Modified string handling via berval instead of *char
   in l_ldap_compare_ext() makes it possible to compare attribute
   values with null chars.
* Wrapped ldap_sasl_bind() for simple binds instead of ldap_bind()
   since 1. the latter is marked deprecated and 2. ldap_sasl_bind()
   allows password credentials with null chars.

ldap.ldapobject:
* LDAPObject.bind() only allows simple binds since Kerberos V4
   binds of LDAPv2 are not supported anymore. An assert statement
   was added to make the coder aware of that.
* Renamed former LDAPObject.sasl_bind_s() to
   LDAPObject.sasl_interactive_bind_s() since it wraps OpenLDAP's
   ldap_sasl_interactive_bind_s()