WIP: rdo multihost job

Change-Id: I82fa950df98d9e77e3d46fa390528383aea46ffc
packstack/multinode: split provisioning to a different play

Change-Id: Ia150646188749cf0cacc213acb2b64ad345f75df
adapt rdo-aio to new format

Change-Id: Ifa504e148c68f2fdbec0b50e544aec53333869ba
Set selinux as a first step in linux role

Change-Id: I111f4853df084670f6846451ce979e9fae316d17
ansible.cfg sets library path

Change-Id: Id5bd790bc23f2ea4fb7ae068a299c49d1fce7fb8
run.sh runs rdo aio

Change-Id: I2bcd3fbc8e89e632ccd9ba297806392a41053f26
updates inventory

Change-Id: I28ee02d5e9970f9eeda414abc5fc0fb7b865a18a