Add support for deploying using Dokku

.buildpacks

@@ -0,0 +1,2 @@
+heroku/nodejs
+https://github.com/heroku/heroku-buildpack-static.git

static.json

@@ -0,0 +1,10 @@
+{
+  "root": "dist/",
+  "clean_urls": true,
+  "https_only": true,
+  "headers": {
+    "/**": {
+      "Cache-Control": "public, max-age=31536000"
+    }
+  }
+}