WPMU Ldap Plugin

For those of you testing on the 3.0 trunk, I have added basic allow and deny group support for overall blog access.  There is logic in there to handle nested groups as well.  However, I only have the ability to test this against an Active Directory server – so if any of you are connecting to openldap, opendirectory or something else and are willing to test, let me know how it works (or how it doesn’t)!