zomg, browser tests work!
zomg, browser tests work!

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