heroku-self-ping and fix bad url for PDF

Author: Amoki

Diff for: bin/server

@@ -1,5 +1,7 @@
 #!/bin/env node
 
+require('heroku-self-ping')(process.env.SELF_URL);
+
 // Load configuration
 var config = require("../config/configuration.js");
 var server = require('../app.js');

Diff for: config/configuration.js

@@ -28,7 +28,7 @@ module.exports = {
   tasksPerProcess: process.env.TASKS_PER_PROCESS,
 
   pdfHydraterUrl: process.env.PDF_HYDRATER_URL || defaultPdfHydraterUrl,
-  officeHydraterUrl: process.env.OFFICE_HYDRATER_URL || defaultOfficeHydraterUrl,
+  officeHydraterUrl: process.env.SELF_URL || defaultOfficeHydraterUrl,
 
   redisUrl: process.env.REDIS_URL,
   appName: process.env.APP_NAME || "office-hydrater",

Diff for: package.json

@@ -25,6 +25,7 @@
     "anyfetch-hydrater": "^2.1.1",
     "async": "0.9.x",
     "exec-sync": "^0.1.6",
+    "heroku-self-ping": "^1.1.1",
     "restify": "~2.8.5",
     "supertest": "^0.15.0"
   },