staypuft: fix latest installation problems

- copy group vars to vagrant ansible inventory dir to make them
  available

Change-Id: I2daa2f43c2bc0cf344b4825556d510299cfdbaed
yum install failing w/o sudo

Change-Id: I1fbe360541073cf4b6ba4264be1bae297eaa08d1
remove reboot workaround for juno

Change-Id: Id1020a7e33a576f47941789d7e1f43a1341b8658
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
no yum update for f21 image

Change-Id: Ief95a980db00dedaae5e3f03ab51afa6b2a0f245