juno workaround for fedora20 and swift

* swift fails to start after a reboot
* https://bugzilla.redhat.com/show_bug.cgi?id=1150590

Change-Id: I5ca936d6b432ce8c7b61a3ee045a37cb09cc51a3
turn off yum update and reboot in f21

Change-Id: I7f6d537ef7b08865eada53e6e9547573d5e0a6e9
Update README.md
Update rdopkg playbook

Change-Id: I3962f201166d59c2e9df6b14da7fb4a94a6c019f
HACK to use tags set by rdopkg

Change-Id: I9768730f0e3edc257691e6e9baaa665c20a7e124
Add pause before running tempest

Change-Id: If7e7269db94407b2e9bc46c6efe1ad73865c52ee