architecture updated
Squashed commit of the following:

commit fcf17a0ac7102bae4bfd1e017214e4e4165ad43f
Author: Nick Holub <nikholub@gmail.com>
Date:   Tue Feb 18 15:02:32 2014 -0800

    fix #MLHR-798 Ads Demo Redis db index
Merge pull request #727 from nickholub/webdemos3_pull

Architecture Diagram, Ads Demo Redis Db Index