Removed some ScriptEngine config debugging.

Added experimental console command to:
* unload module (note: module probably doesn't support it)
* load module
Not visible in help (needs testing first).

OpenSim/Region/Environment/ModuleLoader.cs

@@ -294,5 +294,12 @@ namespace OpenSim.Region.Environment
         {
             LoadedAssemblys.Clear();
         }
+
+        public void UnloadModule(IRegionModule rm)
+        {
+            rm.Close();
+            
+            m_loadedModules.Remove(rm);
+        }
     }
 }