v0.11 - Invis Mode Update

I added a new piece symbol.

I also added basic version support so you can easily copy settings and highscores from previous versions to the latest version.

I added invisible mode to the game. It's supposed to be a secret mode but if your reading the patch notes then I don't mind telling you how to unlock it. (The intended way is to customize all 3 pieces so their symbols are indistinguishable, but you can also activate debug mode using the ~ key and find the toggle in the options menu.)

I changed the UI a bunch and made it so all of the options menu is mouse friendly.

Lots of additional bug fixes.