Added serverPort property.

backend/config/template.json

@@ -2,6 +2,7 @@
 	"secret": "",
 	"domain": "",
 	"serverDomain": "",
+  	"serverPort": 8080,
   	"isDocker": true,
 	"apis": {
 		"youtube": {

backend/logic/app.js

@@ -24,7 +24,7 @@ const lib = {
 
 		let app = lib.app = express();
 
-		lib.server = app.listen(8080);
+		lib.server = app.listen(config.get('serverPort'));
 
 		app.use(bodyParser.json());
 		app.use(bodyParser.urlencoded({ extended: true }));