Heart surgery on asset service code bits. Affects OpenSim.ini configuration -- please see the example. Affects region servers only.

This may break a lot of things, but it needs to go in. It was tested in standalone and the UCI grid, but it needs a lot more testing.
Known problems: 
* HG asset transfers are borked for now
* missing texture is missing
* 3 unit tests commented out for now

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -3465,7 +3465,7 @@ namespace OpenSim.Region.Framework.Scenes
                         group.GetPartDescription(localID),
                         (sbyte)AssetType.Object,
                         Utils.StringToBytes(sceneObjectXml));
-                    CommsManager.AssetCache.AddAsset(asset);
+                    AssetService.Store(asset);
 
                     InventoryItemBase item = new InventoryItemBase();
                     item.CreatorId = part.CreatorID.ToString();