Signature for Node.js

Ported line for line from the Ruby gem Signature

Usage

Mostly mirrors the Ruby gem

var Signature = require('signature');

var request = new Signature.Request(method, path, params),
    token   = request.authenticate(function(key){
        return new Signature.Token(key, secret);
    });

Warning

Soooo... yeah. I haven't really tested most of the code. I know I know. But you'll let me know if anything is amuck, right? Perfect.