message: Use utils.downloadToFile() from also for app logo
  (fixes issue with occasionally crashing server some seconds after start)
diff: @@ -187,10 +187,7 @@ exports.start = function (config, readyCallback) {
  })
  })
  if (config.get('application.logoReplacementUrl')) {
  - var file = fs.createWriteStream('app/public/images/JuiceShop_Logo.png')
  - https.get(config.get('application.logoReplacementUrl'), function (response) {
  - response.pipe(file)
  - })
  + utils.downloadToFile(config.get('application.logoReplacementUrl'), 'app/public/images/JuiceShop_Logo.png')
  }
  }
  }
  