Include babel pollyfill

This was needed specifically for async and await in this scenario.
I know however that this pollyfill is very large, so it might be better
to just include the async/await pollyfill that I need instead of the
whole thing.

package.json

@@ -47,6 +47,7 @@
     "babel-cli": "6.16.0",
     "babel-core": "6.17.0",
     "babel-loader": "^7.1.2",
+    "babel-polyfill": "^6.26.0",
     "babel-preset-env": "^1.6.1",
     "babel-preset-react": "^6.24.1",
     "babel-register": "6.16.3",

src/index.tsx

@@ -7,6 +7,9 @@ import Root from './components/Root'
 import { loadCourses } from './redux'
 import { loadAuthors } from './redux'
 
+import 'babel-core/register'
+import 'babel-polyfill'
+
 const store = configureStore()
 store.dispatch(loadCourses())
 store.dispatch(loadAuthors())

webpack.config.dev.js

@@ -7,6 +7,7 @@ export default {
   entry: [
     'react-hot-loader/patch',
     'webpack-hot-middleware/client',
+    'babel-polyfill',
     path.resolve(__dirname, 'src/index.tsx'),
   ],
   devtool: 'eval-source-map',