better error handling on the runners.js
better error handling on the runners.js

gutomaia/nodeNES,bigpete/nodeNES,AgtLucas/nodeNES,bigpete/nodeNES,AgtLucas/nodeNES,gutomaia/nodeNES,bradparks/nodeNES,addtheice/nodeNES,bigpete/nodeNES,gutomaia/nodeNES,bradparks/nodeNES,addtheice/nodeNES,addtheice/nodeNES,bradparks/nodeNES,AgtLucas/nodeNES