hardcode logging of box code to box.log

src/server.js

@@ -10,6 +10,7 @@ let assert = require('assert'),
     cloudron = require('./cloudron.js'),
     constants = require('./constants.js'),
     database = require('./database.js'),
+    debug = require('debug')('box:server'),
     eventlog = require('./eventlog.js'),
     express = require('express'),
     http = require('http'),
@@ -332,6 +333,12 @@ function start(callback) {
     assert.strictEqual(typeof callback, 'function');
     assert.strictEqual(gHttpServer, null, 'Server is already up and running.');
 
+    debug();
+    debug('==========================================');
+    debug(`           Cloudron ${constants.VERSION}  `);
+    debug('==========================================');
+    debug();
+
     gHttpServer = initializeExpressSync();
 
     async.series([