* ARequest changed name to AssetRequest and moved to own file.

* The AssetServerBase is now responsible for dequeueing, the server implementations merely recieves ProcessRequest( AssetRequest req )
* Catchall added around queue processing thread so thread won't abort on exceptions.

OpenSim/Framework/AssetRequest.cs

@@ -0,0 +1,10 @@
+using libsecondlife;
+
+namespace OpenSim.Framework
+{
+    public struct AssetRequest
+    {
+        public LLUUID AssetID;
+        public bool IsTexture;
+    }
+}