[mesos/f20] (16 commits) ...Mock builds for epel

[tstclair]

Summary of changes:

  7f1f980... - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_M (*)
  64f1937... Merge branch 'f20' into f21 (*)
  9715994... Merge branch 'f20' into f21 (*)
  a267722... Merge branch 'f20' into f21 (*)
  b2dbfae... update from build (*)
  0e12e8c... update dependencies (*)
  55b1328... Updates to build (*)
  589c373... Update docker dep for x86_64 arch only (*)
  91cf4ab... Merge branch 'f20' into f21 (*)
  4816c81... Merge branch 'f20' into f21 (*)
  e5ef46d... put bundled make outside %if (*)
  0961fea... put bundled make outside %if (*)
  f6d40b6... Merge branch 'f20' into f21 (*)
  576552b... Merge branch 'f21' (*)
  a233a53... Enable CentOS7 (*)
  7bcbb63... Mock builds for epel

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