Add some finishing touches to Docker + Hot loader support

There was a bug on Windows machines (not OSX) where changes to source
code weren't getting picked up by the hotloader, even though the hot
loader was running. The fix was to enable polling in the hot loader
server config
(webpack/webpack-dev-server#143 (comment))

I also fixed the links to the static files in the html template to point
to the /static/ nginx path

I also refactored the two docker files into a folder, so they aren't
just floating around at the project root

docker-compose.yml

@@ -14,7 +14,7 @@ services:
   web:
     build:
       context: .
-      dockerfile: web.Dockerfile
+      dockerfile: docker/web.Dockerfile
     container_name: dg01
     command: bash -c "python manage.py makemigrations && python manage.py migrate && gunicorn InForm.wsgi -b 0.0.0.0:8000"
     volumes:
@@ -25,7 +25,7 @@ services:
   hotloader:
     build:
       context: .
-      dockerfile: hotloader.Dockerfile
+      dockerfile: docker/hotloader.Dockerfile
     container_name: hl01
     command: bash -c "npm install && npm start"
     volumes:

src/forms/templates/forms/index.html

@@ -11,7 +11,7 @@
     <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
     <link rel="stylesheet" href="https://code.getmdl.io/1.2.1/material.indigo-pink.min.css">
     <script defer src="https://code.getmdl.io/1.2.1/material.min.js"></script>
-    <link rel="stylesheet" href="../../../assets/css/main.css">
+    <link rel="stylesheet" href="/static/css/main.css">
     <!--<script defer src="bundles/bundle.js"></script>-->
 </head>
 

src/server.js

@@ -4,6 +4,9 @@ var config = require('./webpack.config')
 
 new WebpackDevServer(webpack(config), {
   publicPath: config.output.publicPath,
+  watchOptions: {
+    poll: true
+  },
   hot: true,
   inline: true,
   historyApiFallback: true