Start using req.resources = { app, volume, ...} pattern

Reason was that req.app was clashing with expressjs v5 which
stores the main expressjs app object there

src/server.js

@@ -54,6 +54,11 @@ async function initializeExpressSync() {
         // search for req.clearTimeout in route handlers to see places where this timeout is reset
         .use(middleware.timeout(REQUEST_TIMEOUT, { respond: true }))
         .use(middleware.cors({ origins: [ '*' ], allowCredentials: false }))
+        .use((req, res , next) => {
+            // we store our route resources, like app,volumes,... in req.resources. Those are added in the load() routes
+            req.resources = {};
+            next();
+        })
         .use(router)
         .use(notFoundHandler)
         .use(middleware.lastMile());