use of inidexs in acl evaluation.

[Gerrit Thomson <334647@swin.edu.au>]

Hi Folks,
    I was trying to get the group acl with regex to work and examining
the code noticed that the group member values are compares as cis rather
than dn as I would have thought given that group memebers are dns.

Anyway I changed my version and it works.

I wondered if the index of the uniquemember attribute could be used in
evaluating the acl.

Cheers,
     Gerrit Thomson.