Cleaned up the loaders

ref #11

src/loaders/express.ts

@@ -1,7 +1,9 @@
 import { Application } from "express";
-import bodyParser from 'body-parser';
-import cors from 'cors';
 
+/**
+ * Loader for express related configurations.
+ * Currently only enables the proxy trust.
+ */
 export default async (app: Application) => {
 	app.enable('trust proxy');
 	return app;