first idea driftpond
initial (bad) implementation of PondTurtle
cleanup of DriftPond code
moving PondTurtle specific code out of turtle.dart (re-implementing hack)
cleanup
merge from master
artwork
files & deps for driftpond
Removed processTouches code since it was broken and soon to be obsolete
Drawing a circle rather than a round rectangle
Removed the sheen div with an image
set background image to cover the canvas
Touching up to work with changes to core
Don't store generated JS files
Merge branch 'driftpond'