bump data-canvas version
bump data-canvas version

hammerlab/pileup.js,piotr-gawron/pileup.js,hammerlab/pileup.js,snaheth/pileup.js,hammerlab/pileup.js,hammerlab/pileup.js,snaheth/pileup.js,snaheth/pileup.js,piotr-gawron/pileup.js,piotr-gawron/pileup.js,snaheth/pileup.js,piotr-gawron/pileup.js