feat(server): export express app

package.json

@@ -2,7 +2,7 @@
   "name": "@coko/server",
   "version": "0.0.0",
   "description": "A tweaked version of pubsweet-server for use by Coko's projects",
-  "main": "index.js",
+  "main": "src/index.js",
   "scripts": {
     "cz": "git-cz",
     "release": "standard-version",

src/index.js

+const authentication = require('pubsweet-server/src/authentication')
+
+const app = require('./app')
+
+const createJWT = authentication.token.create
+
+module.exports = {
+  app,
+  createJWT,
+}