Game states re-added (they were deleted somehow)
Game states and buttons finished (need final art)
Added placeholder button art
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Merge branch 'ryan's-branch' of https://github.com/MissionBit/SnailAssalt
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Cleaner button code allows for easier button addition; game state code reflects
Merge branch 'ryan's-branch' of https://github.com/MissionBit/SnailAssalt
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merged some stuff?