[Feature request] Support react-native

[vespakoen]

1. What version of bluebird is the issue happening on?
   3.3.1 (latest)
2. What platform and version? (For example Node.js 0.12 or Google Chrome 32)
   React Native 0.20 (using react-native packager), node 5.4.1, npm 3.3.12
3. Did this issue happen with earlier version of bluebird?
   Probably, yes

When bluebird is required inside of a react-native project, it crashes because it assumes when it is not running on node.js that it is running in a browser.

In react-native the document is not present and it throws an error.

[benjamingr]

@vespakoen can you please share the error and stack trace?

I think it's a platform we generally want to support.

[vespakoen]

Ah, I had "Pause On Caught Exceptions" enabled, it seems to catch / handle it fine when I resume script execution.

My mistake (btw, it did seem to be an actual problem in the past: #550)