[Patch] Samba v3.0 support patch - the one that works. I think.

Hi all,

The attached patch seems to support Samba v3.0. I'd appreciate it if 
people could give it a test drive and tell me whether it works or not.

It also tries to support the LDAP_TAG_EXOP_MODIFY_PASSWD extended option 
for setting passwords, if people could give this a try too I'd 
appreciate it.

Regards,
Graham
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