Added a blog post about openstack, autoscale and orchestration.

This post was coordinated with (and received contributions from) the following folks:
 * Kevin Minnick
 * Troy Toman
 * Ziad Sawalha
 * Caleb Groom
 * Chris Spencer
 * Keith Bray
 * Josh Odom
 * Rhett Dillingham
 * Adrian Otto
 * Dan Di Spaltro