Add unhandledRejection handler
Add unhandledRejection handler

getsentry/raven-js,getsentry/raven-node,getsentry/raven-js,getsentry/raven-node,getsentry/raven-js,miguelb/raven-node,BuildingConnected/raven-node,getsentry/raven-js,miguelb/raven-node