[koji/el6] (4 commits) ...Merge branch 'master' into el6

[Dennis Gilmore]

Summary of changes:

  7abba81... - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass (*)
  4736a75... add patch to move builder workdir to /var/tmp (*)
  ebb5f90... add upstream patch to compress docker images (*)
  b47aaa0... Merge branch 'master' into el6

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