Code review comment for lp:~berendt/nova/lp712681

Deployment scripts in general should live outside the source tree, unless we can always keep them in sync with the rest of the code. They are usually refined once the code stabilizes and even shortly after release, so their release cycle is slightly off. That's why we pushed the nova deployment tool from NII outside the main source tree, and I don't see the puppet stuff being any different.