Provide hosts as environment settings and add npm run start script

services/spelling/config/settings.defaults.coffee

@@ -4,15 +4,15 @@ module.exports = Settings =
 	internal:
 		spelling:
 			port: 3005
-			host: "localhost"
+			host: process.env["LISTEN_ADDRESS"] or "localhost"
 			
 	redis:
-		port:6379
-		host:"127.0.0.1"
+		port: 6379
+		host: process.env["REDIS_HOST"] or "localhost"
 		password:""
 		
 	mongo:
-		url : 'mongodb://127.0.0.1/sharelatex'
+		url : "mongodb://#{process.env["MONGO_HOST"] or "localhost"}/sharelatex"
 
 	cacheDir: Path.resolve "cache"
 

services/spelling/package.json

@@ -6,6 +6,10 @@
     "type": "git",
     "url": "https://github.com/sharelatex/spelling-sharelatex.git"
   },
+  "scripts": {
+    "compile:app": "coffee -o app/js -c app/coffee && coffee -c app.coffee",
+    "start": "npm run compile:app && node app.js"
+  },
   "version": "0.1.4",
   "dependencies": {
     "async": "0.1.22",