Very Early Preview Version

Hi,

I have decided to publish a preview release - just to let people know that work is in progress.
This is a very early version and lacks many features, mainly any kind of animation and overlay
preview, but not only. I am planning to add many features more like reflecting sprite, negation,
export from command line etc.

I hope you will like the look & feel of this application. There is a lot of work before me, but I
think, it is better to publish a preview and maybe receive some feedback, than testing everything
alone.

Cheers.