Asteroidz 2.7

Fixed sliding, not turning.
Revert "Asteroidz 2.7"

This reverts commit ee2057b918f857ecdf12b96fd9638b3fe10698ce.
Asteroidz 2.8

Fixed turning, and sliding on decel. May have a bug, not determined yet.
Asteroidz 2.9

Improved asteroids, more complete shape. no more weird inside each other
shapes.
Asteroidz 3.0

Improved asteroids out of bounds function, added lazers.
Asteroidz 3.1

Cleaned Up Code. Made lazer the 'a' key.