Merge pull request #49 from melonjs/master

Updated melonJS version
melonjs: fix for retina displays
+cutjs
Merge pull request #53 from shakiba/master

CutJS/P2.js/Howler.js
use devicePixelRatio
rm p2s, add ppu
Merge pull request #55 from shakiba/master

cutjs update
devicePixelRatio or 1
update cut
Merge pull request #56 from shakiba/master

fix ratio, cut update
CutJS: removing ref to non-existant example.css
README: added CutJS
Refactored determineBounceVelocityX method
Merge pull request #57 from ErnstHaagsman/phaser-refactor

Refactored determineBounceVelocityX method
Kiwi.js initial commit
Cleaned up commenting
Merge pull request #58 from stupidlikeafox/master

http://jsbreakouts.org/ submission: Kiwi.js
Kiwi: centering in window, black background
Kiwi: no longer reseting bricks for each death
Kiwi: scaling viewport for phones
READMEs: made resource license more clear