[NOT READY] Node v0.10.x

Currently one failing test (need to work out if it is a node version) issue:

```sh
  1) tiles from bad server should abort when the server takes too long:
     Error: timeout of 2000ms exceeded
      at null.<anonymous> (/Users/dane/projects/node-tilejson/node_modules/mocha/lib/runnable.js:165:14)
      at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)
```