fixes warped canvas arcs in Chrome
fixes warped canvas arcs in Chrome

AndBicScadMedia/vvvv.js,zauner/vvvv.js,zauner/vvvv.js,zauner/vvvv.js,sebllll/vvvv.js,sebllll/vvvv.js,AndBicScadMedia/vvvv.js,zauner/vvvv.js,sebllll/vvvv.js,zauner/vvvv.js,AndBicScadMedia/vvvv.js,sebllll/vvvv.js,sebllll/vvvv.js,AndBicScadMedia/vvvv.js,AndBicScadMedia/vvvv.js