Upstream Redirection Getting Started and Integration Guide

[Jim Thario]

TW-created document with content provided by development team.
Describes the steps involved to install the appropriate stacks for upstream redirection.
Describes a scenario for integrating VWR with an existing web site with minimal choices for customization.

This is integration scenario 1 from this blog post:
https://aws.amazon.com/blogs/compute/introducing-aws-virtual-waiting-room/