Add StackTracePlus, Rewrite not to recreate eluna on reload

GlobalMethods.h

@@ -1046,7 +1046,7 @@ namespace LuaGlobalFunctions
      */
     int ReloadEluna(Eluna* /*E*/, lua_State* /*L*/)
     {
-        Eluna::reload = true;
+        Eluna::ReloadEluna();
         return 0;
     }