All about user login

Not runnable at the moment

lib/nodeify.js

@@ -0,0 +1,15 @@
+'use strict';
+
+const nodeify = require('nodeify');
+
+module.exports.nodeifyPromise = nodeify;
+
+module.exports.nodeifyFunction = (asyncFun) => {
+    return (...args) => {
+        const callback = args.pop();
+
+        const promise = asyncFun(...args);
+
+        return module.exports.nodeifyPromise(promise, callback);
+    };
+};