Should I override `Promise`s with `Bluebird`s?

[why-jay]

nodejs/node#758

[why-jay]

I have decided to override Promises with Bluebirds by doing global.Promise = require('bluebird').

I throw a lot of Errors inside async functions, and the default Promise objects don't report unhandled exceptions. So I had to manually try-catch all Errors every time I wrote an async function. This is verbose.

Bluebird fixes this issue with the unhandedRejection event.