Version 0.3 - A new mode and sound

This version adds a new game mode: The Line Mode

Instead of only building squares you can now also build rectangles.

That makes building faster, but the evaluation time is shorter as well. So I hope it is not to easy.

Of course, since that mode is new, expect errors.

For example: The scoreboard will show 999999 at some point an stop showing your score.

But don't worry, your score will still be counted and you will see it at the end.

Also there is sound now on some places and music in the background.

The music is more like a placeholder as long as I get something better.