XmlDeserializer.HandleListDerivative does not try the lowercased, "undashed" version for element names.

Issue was reported here:
http://groups.google.com/group/restsharp/browse_thread/thread/c70c39b47d10002d

Author: zidad

RestSharp/Deserializers/XmlDeserializer.cs

@@ -247,6 +247,13 @@ private object HandleListDerivative(object x, XElement root, string propName, Ty
 			var elements = root.Descendants(t.Name.AsNamespaced(Namespace));
 
 			var name = t.Name;
+
+            if (!elements.Any())
+            {
+                var lowerName = name.ToLower().AsNamespaced(Namespace);
+                elements = root.Descendants().Where(e => e.Name.LocalName.RemoveUnderscoresAndDashes() == lowerName);
+            } 
+
 			if (!elements.Any())
 			{
 				var lowerName = name.ToLower().AsNamespaced(Namespace);