Merge pull request #1 from cjwillia/master

Current update
Merge pull request #2 from cjwillia/master

it's 7 am
Added difficulty levels to game
Changed instructions so that they don't redraw on every refresh. Pulse is taken away
Added directional animation for currents
Merge branch 'master' of https://github.com/dgurjar/Poseidon
Added white tint to bubbles
fixed up my last things.