expressjs use Helmet

[PauloFerreira25]

Please add use Helmet in express

http://expressjs.com/pt-br/advanced/best-practice-security.html

[krazyjakee]

For those who want details in english: http://expressjs.com/en/advanced/best-practice-security.html#use-helmet

[skeggse]

This seems out of scope for this project. I recommend you configure the express application yourself and attach helmet to it prior to attaching arena. Feel free to argue otherwise!