Promisifying this module

[dsernst]

SInce geocoder.geocode() takes a callback as its second to last argument, I found this module to be more difficult than usual to promisify using something like bluebird's promisifyAll() function.

Have you ever tried this? Do you have any tips?

[jontewks]

Imagine seeing you here @dsernst because I came for this reason.

[troy0820]

I've done it, just so I can use the .then instead of the callback signature. Performance seems to be the same. Here is a project I used it in https://github.com/troy0820/fixit/blob/master/request-promise.js

[niftytushar]

I've updated the code to now use promises.
Refer #16
https://github.com/niftytushar/geocoder