blog post on using heat to install deis on rackspace cloud.

I'm not completely sure I'm doing this right,  but the contributions instructions seem to be somewhat out of date and the build/testing scripts bombed big time for me.

Bio:

```
Paul Czarkowski is a Systems Engineer working at Rackspace 
on the Solum Project.
```

twitter: @pczarkowski
irc: paulczar

feel free to edit/cleanup/etc.
DEIS requires at least three servers running CoreOS and benefits greatly from being fronted by a load balancer.