Multiple instances of trading API wrapper? about node-poloniex-unofficial

[tylerfilla]

The new prototype-based wrappers in commit 9479f86 (edit: amended to 4631bd6) allow this.

Instead of...

var polo = require("poloniex-unofficial");

var trading = polo.api("trading", {
    key: "key",
    secret: "secret"
});

You can now do this...

var polo = require("poloniex-unofficial");

var trading1 = new polo.TradingWrapper("key1", "secret1");
var trading2 = new polo.TradingWrapper("key2", "secret2");
var trading3 = new polo.TradingWrapper("key3", "secret3");

The former method still works. I just shimmed it to use the latter method internally. I have no idea what good this does, but it feels less restrictive ¯\_(ツ)_/¯