[Rdo-list] Initial Foreman intructions for use with Openstack

[Jason Guiditta]

I would like to ask people to take a look at the directions[1] that are
now up on the RDO wiki for using foreman to configure openstack nodes.
Currently includes are compute and controller nodes, and the doc walks
you through a basic setup for trying these out.  Thanks to Matt Wagner
for all the help cleaning up the directions so they were more clear.
Any additions, changes, improvements welcome.

-j

[1] http://openstack.redhat.com/Deploying_RDO_Using_Foreman