make all private attributes protected to allow access from inherited classes

Hey guys,

we exchanged [messages on the Starling](http://forum.starling-framework.org/topic/cache-result-of-a-query) forum earlier. I wanted to give the CachedQuery class a try, but stumbled upon some problems. My idea is to inherit com.gamua.flox.Query and add the required functionality. Unfortunately all attributes are private, so inheriting from Query is cumbersome. If they were protected, information hiding would be maintained to the outside, but extensibility was possible.

Would be nice if you could adopt this change, because this change is not sufficient to maintain a fork and should work well with your project.

Thanks
Robert