[openstack-nova/f20] (4 commits) ...Merge branch 'master' into f20

[Xavier Queralt Mateu]

Summary of changes:

  fded435... Remove cert and scheduler hard dependency on cinderclient (*)
  71b2c96... Require ipmitool for baremetal driver (*)
  ef068d1... Ensure we don't boot oversized images (*)
  7a52de7... Merge branch 'master' into f20

(*) This commit already existed in another branch; no separate mail sent