draft: refactor project so it sits on top of a standalone app

zero.Web.UI/node_modules/node-sass/scripts/util/useragent.js

@@ -0,0 +1,13 @@
+var pkg = require('../../package.json');
+
+/**
+ * A custom user agent use for binary downloads.
+ *
+ * @api private
+ */
+module.exports = function() {
+  return [
+    'node/', process.version, ' ',
+    'node-sass-installer/', pkg.version
+  ].join('');
+};