Move HTTPS forwarding to nginx

[kafoso]

Currently, the node script server.js takes care of redirecting HTTP to HTTPS. This should be moved to server proxy (nginx?).

[Veritasimo]

nginx should really be handling everything to do with SSL termination. The backend server should be vanilla HTTP (or FastCGI).

[sebneira]

It is currently like that for erosd, we can use the same config.

[kafoso]

Yeah. Should be fairly simple to implement.