created server/bin/ for server entrypoints

- added server/bin/test.js for the frontend test runner

package.json

@@ -31,7 +31,7 @@
     "test-integration": "docker-compose up --abort-on-container-exit --exit-code-from integration-tests --build --remove-orphans --quiet-pull && docker-compose down",
     "test-integration-stage": "cross-env BASE_URL=https://send.stage.mozaws.net npm run test-integration",
     "start": "npm run clean && cross-env NODE_ENV=development webpack-dev-server",
-    "prod": "node server/prod.js"
+    "prod": "node server/bin/prod.js"
   },
   "lint-staged": {
     "*.js": [