Rewrite code using promises?

[snorremd]

As of Node 4.0.0 promises are available natively. With the introduction of the security and geo modules, another layer of callbacks have been added to the callback cake. We are bordering on the territory of callback hell.

We should at least consider rewriting the modules to use the promise pattern when a stable version of Node.js 4.1.0 and npm (something) becomes available. It would make the code more manageable.