ghosts are now properly vulnerable and invulnerable

after pacman powerup ends the ghosts go back to normal
Fixed the bug where ghosts sometimes get stuck, Pacman should work now as well

fixed some bugs with ghosts and pacman getting stuck
updated the ghosts to be a little smarter

Smarter ghosts (kind of)
Pacman now spins correctly

Fixed the pacman direction bug
Merge pull request #41 from TeamAwesome5u/Micah

Micah