feat(Flash): Add render methods that do not dump flash autom

query from the front end app for these messages

server/boot/home.js

@@ -9,14 +9,15 @@ module.exports = function(app) {
   var router = app.loopback.Router();
   router.get('/', addDefaultImage, index);
   app.use(
-      '/:lang',
-      (req, res, next) => {
-        // add url language to request for all routers
-        req._urlLang = req.params.lang;
-        next();
-      },
-      router
-    );
+    '/:lang',
+    (req, res, next) => {
+      // add url language to request for all routers
+      req._urlLang = req.params.lang;
+      next();
+    },
+    router
+  );
+
   app.use(router);
 
   function addDefaultImage(req, res, next) {

server/boot/react.js

@@ -95,8 +95,9 @@ export default function reactSubRouter(app) {
         const title = titleSelector(state);
         epic.dispose();
         res.expose(state, 'data', { isJSON: true });
-        res.expose(req.flash(), 'flash', { isJSON: true });
-        res.render('layout-react', { markup, title });
+        // note(berks): we render without express-flash dumping our messages
+        // the app will query for these on load
+        res.renderWithoutFlash('layout-react', { markup, title });
       })
       .subscribe(() => log('html rendered and sent'), next);
   }