* Fixed another null reference exception in asset code

* Added a debug logging on/off command to TestClient and a research command that is just a sandbox for random testing
* Fixed the teleport callback
* Added VisualParamGenerator that is like BodyShapeGenerator but different

git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@867 52acb1d6-8a22-11de-b505-999d5b087335

libsecondlife-cs/examples/TestClient/Commands/DebugCommand.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using libsecondlife;
+using libsecondlife.Packets;
+
+namespace libsecondlife.TestClient
+{
+    public class DebugCommand : Command
+    {
+        public DebugCommand(TestClient testClient)
+        {
+            Name = "debug";
+            Description = "Turn debug messages on or off. Usage: debug [on/off]";
+        }
+
+        public override string Execute(string[] args, LLUUID fromAgentID)
+        {
+            if (args.Length != 1)
+                return "Usage: debug [on/off]";
+
+            if (args[0].ToLower() == "on")
+            {
+                Client.Debug = true;
+                return "Debug logging is on";
+            }
+            else if (args[0].ToLower() == "off")
+            {
+                Client.Debug = false;
+                return "Debug logging is off";
+            }
+            else
+            {
+                return "Usage: debug [on/off]";
+            }
+        }
+    }
+}