Migrate all the things

* Migrates from Mongo to Postgres.
* Migrates from JSPM to Webpack.
* Migrates from React to Vuejs.
* Migrates from Bootstrap to Bulma.

Also:
* Fixes rendering of meta data in the document head tag.

routes/itunes-proxy.js

@@ -1,14 +0,0 @@
-import { parse } from 'url';
-import request from 'superagent';
-
-export default function* (next) {
-  const url = 'http://' + this.request.url.substr(8);
-  const parsed = parse(url);
-  if (parsed.host.match(/mzstatic\.com/)) {
-    const proxyResponse = yield request.get(url);
-    this.set(proxyResponse.headers);
-    this.body = proxyResponse.body;
-  } else {
-    yield next;
-  }
-};