Changes

## fix sound 'stuttering' -- subzero  HIGH Priority

## fix sound 'stuttering' -- subzero  HIGH Priority

## refactor "Quadrilaterals" to use KSurface-- subzero

## refactor "Quadrilaterals" to use KSurface-- subzero

## add kid's voices to "adding_up"

## add kid's voices to "adding_up" -- bryan

## article for olpcnews.com

## article for olpcnews.com -- bryan

# Possible changes for jquery.karma.js

# Possible changes for jquery.karma.js

## initialize klayers in k.init?

## initialize klayers in k.init?