remove route preloading from sapper, force NODE_ENV=production

Author: nolanlawson

package-lock.json

@@ -7,8 +7,8 @@
     "dev": "run-s build-svg serve-dev",
     "serve-dev": "run-p --race build-sass-watch serve",
     "serve": "node server.js",
-    "build": "run-s globalize-css build-sass build-svg sapper-build deglobalize-css",
-    "sapper-build": "sapper build",
+    "build": "cross-env NODE_ENV=production run-s globalize-css build-sass build-svg sapper-build deglobalize-css",
+    "sapper-build": "cross-env NODE_ENV=production sapper build",
     "start": "cross-env NODE_ENV=production node server.js",
     "build-and-start": "run-s build start",
     "build-svg": "node ./bin/build-svg.js",