event emitter leak warnings

[stephenmathieson]

blah blah: (node) warning: possible EventEmitter memory leak detected. 11 listeners added. Use emitter.setMaxListeners() to increase limit.

maybe use shutup?

[jonathanong]

yeah we could just set .setMaxListeners(0). i don't think i've actually run into any leaks, so we could probably just ignore these mesages