0006270: Warp3D leaks memory on mono based systems

Thanks Hiro Lecker for a patch to reduce memory useage with Warp3D map module

OpenSim/Region/CoreModules/World/Warp3DMap/Warp3DImageModule.cs

@@ -208,6 +208,9 @@ namespace OpenSim.Region.CoreModules.World.Warp3DMap
                     bitmap = ImageUtils.ResizeImage(origBitmap, viewport.Width, viewport.Height);
             }
 
+            GC.Collect();
+            m_log.Debug("[WARP 3D IMAGE MODULE]: GC.Collect()");
+
             return bitmap;
         }
 
@@ -673,4 +676,4 @@ namespace OpenSim.Region.CoreModules.World.Warp3DMap
             return result;
         }
     }
-}
+}