1.1 Release

Some changes were made to make the game to make the Snake somewhat easier to control.

• Changed the Snake's movement slightly to make it easier to change direction. Now, instead of having to be holding the key while the head was in position, the head will turn in the last tapped direction. This is represented by an arrow, giving immediate feedback to setting direction even if the snake doesn't immediately turn.
• Added a checkered background which visualizes the grid the Snake moves on.
• Made the Snake very slightly slower.