Server render the main page

Also, add hashes to asset file names and use the "entry manifest" plugin
in dev to get auto-reloading.

public/react-dom@16.7.0/package.json

@@ -1,83 +0,0 @@
-{
-  "_from": "react-dom",
-  "_id": "react-dom@16.7.0",
-  "_inBundle": false,
-  "_integrity": "sha512-D0Ufv1ExCAmF38P2Uh1lwpminZFRXEINJe53zRAbm4KPwSyd6DY/uDoS0Blj9jvPpn1+wivKpZYc8aAAN/nAkg==",
-  "_location": "/react-dom",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "tag",
-    "registry": true,
-    "raw": "react-dom",
-    "name": "react-dom",
-    "escapedName": "react-dom",
-    "rawSpec": "",
-    "saveSpec": null,
-    "fetchSpec": "latest"
-  },
-  "_requiredBy": [
-    "#USER",
-    "/"
-  ],
-  "_resolved": "https://registry.npmjs.org/react-dom/-/react-dom-16.7.0.tgz",
-  "_shasum": "a17b2a7ca89ee7390bc1ed5eb81783c7461748b8",
-  "_spec": "react-dom",
-  "_where": "/Users/michael/Projects/unpkg.com/functions",
-  "browser": {
-    "./server.js": "./server.browser.js",
-    "./unstable-fizz.js": "./unstable-fizz.browser.js"
-  },
-  "browserify": {
-    "transform": [
-      "loose-envify"
-    ]
-  },
-  "bugs": {
-    "url": "https://github.com/facebook/react/issues"
-  },
-  "bundleDependencies": false,
-  "dependencies": {
-    "loose-envify": "^1.1.0",
-    "object-assign": "^4.1.1",
-    "prop-types": "^15.6.2",
-    "scheduler": "^0.12.0"
-  },
-  "deprecated": false,
-  "description": "React package for working with the DOM.",
-  "files": [
-    "LICENSE",
-    "README.md",
-    "build-info.json",
-    "index.js",
-    "profiling.js",
-    "server.js",
-    "server.browser.js",
-    "server.node.js",
-    "test-utils.js",
-    "unstable-fire.js",
-    "unstable-fizz.js",
-    "unstable-fizz.browser.js",
-    "unstable-fizz.node.js",
-    "unstable-native-dependencies.js",
-    "cjs/",
-    "umd/"
-  ],
-  "homepage": "https://reactjs.org/",
-  "keywords": [
-    "react"
-  ],
-  "license": "MIT",
-  "main": "index.js",
-  "name": "react-dom",
-  "peerDependencies": {
-    "react": "^16.0.0"
-  },
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/facebook/react.git"
-  },
-  "scripts": {
-    "start": "node server.js"
-  },
-  "version": "16.7.0"
-}