Open Stack

With some xargs, sed, and pandoc - I now present to you the first
attempt at converting the DevStack docs to RST, and making the doc build
look similar to other projects.

https://review.openstack.org/130241

It is extremely rough, I basically ran everything through Pandoc and
cleaned up any errors that Sphinx spat out. I'm sure there is a lot of
work that needs to be done to format it to be more readable - but I'm
pretty pleased with the result.

-- 
Sean M. Collins