From: Alan M Webb <alan_webb@us.ibm.com>

Added support for access control lists.
  Scene: Added test to AddNewClient for an entry in the access
         list when connecting to a region with limited access.
  EstateSettings: Added an HasAccess(UUID) property to test for
         an entry in the estate's access list.
  RemoteAdmin: Add RPC calls for admin_acl_list, clear, add,
         and remove.

OpenSim/Framework/EstateSettings.cs

@@ -358,6 +358,11 @@ namespace OpenSim.Framework
                     l_EstateBans.Remove(ban);
         }
 
+        public bool HasAccess(UUID user)
+        {
+            return l_EstateAccess.Contains(user);
+        }
+
         public void loadConfigurationOptions()
         {
             configMember.addConfigurationOption("billable_factor",