Update infrastructure for Hub server

[VikramTiwari]

Hub is currently hosted on an Ubuntu VM with OS version 15.04. This is a deprecated version. During resolution of #98 I realized that there is an open security bug which is causing our SSL score to be down even when we are using LetsEncrypt.

For comparison:
My website score is A+ while hub's score is F.

My suggestion would be to move project into a new VM with either Debian 8 or Ubuntu 16.10

[Splaktar]

Tried to upgrade ubuntu on the same VM today but it failed as unsupported. Looks like we'll need to spin up a new VM.

[VikramTiwari]

Yeah! I tried that earlier as well but since it's on a non-LTS version, the upgrade won't make through.

I can take point on this over the weekend. Though if you have some time please do the following:

• A basic documentation/script on all the things that are needed to run the hub project
• Share any env files over gdrive
• Anything else I should know (DNS mapping, static IP addresses etc)

Let me know what you think.

[Splaktar]

I tried to document everything here https://github.com/gdg-x/hub/wiki/Building-a-Hub-instance. It would be great if you could get it up and running on an updated ubuntu LTS VM. Thank you.