Fixed a compile error with LUA.

Source/Engine/LuaScript/pkgs/UI/UIElement.pkg

@@ -247,7 +247,7 @@ class UIElement : public Animatable
     tolua_property__get_set bool useDerivedOpacity;
     tolua_property__has_set bool focus;
     tolua_property__is_set bool enabled;
-    tolua_property__is_set bool enabledPrev;
+    tolua_property__is_set bool deepEnabled;
     tolua_property__is_set bool editable;
     tolua_property__is_set bool selected;
     tolua_property__is_set bool visible;