* More friendly OpenJpeg error handling.

* Often times now the only reason OpenJpeg doesn't work is because it requires Glibc 2.4    The error messages reflect that.
* In J2kDecoder module, It stops trying to decode modules if it encounters a dllnotfound exception and instead sends a full resolution layer that causes the texture sender to only send the full resolution image.  (big decrease in texture download speed, but it's better then nasty repeating error messages)

OpenSim/Region/Environment/Modules/Scripting/VectorRender/VectorRenderModule.cs

@@ -169,7 +169,17 @@ namespace OpenSim.Region.Environment.Modules.Scripting.VectorRender
 
             GDIDraw(data, graph);
 
-            byte[] imageJ2000 = OpenJPEG.EncodeFromImage(bitmap, true);
+            byte[] imageJ2000 = new byte[0];
+
+            try
+            {
+                imageJ2000 = OpenJPEG.EncodeFromImage(bitmap, true);
+            }
+            catch (Exception)
+            {
+                Console.WriteLine(
+                    "[VECTORRENDERMODULE]: OpenJpeg Encode Failed.  Empty byte data returned!");
+            }
             m_textureManager.ReturnData(id, imageJ2000);
         }