Document SSL/HTTPS procedures

[13rac1]

RW should run entirely via HTTPS. We need to figure a way to make an automatic self-signed cert or ??? to reduce the initial install process. This may be related to #183 for Ansible or Fabric.

[13rac1]

Free SSL certs available here: http://www.startssl.com/

[13rac1]

Ideally we can use/recommend this: https://letsencrypt.org/