v0.007

Some big changes in this version!

I got the walls out for this version and made it all in glorious 16 by 9. 

Also decreased the necessary bounces to two, so that points can be taken.

Speeded up the ball shooting so points are easier to get.

I also added a slow down to the ship, which probably helps with steering.

Also added particles to the squares, which is kind of better I think. I wanted to add them for a death animation, but I couldn't make the death work, probably I couldn't find the right function. I had physical interaction between balls but for some reason on_body_entered was not triggered. We will see.

I also want to add different sized squares, maybe different kind of surfaces, powerups, a powerup selection menu. And sound effects! A high score list!