[rpkg/f17] (8 commits) ...Merge remote-tracking branch 'origin/el6'

[Jesse Keating]

Summary of changes:

  7ff774d... Merge branch 'master' into f16 (*)
  0bc8e18... Merge branch 'master' into f15 (*)
  1658dfe... Merge branch 'master' into el6 (*)
  0cd195a... Fix chainbuilds (*)
  a44d01a... Merge remote-tracking branch 'origin/f17' (*)
  b1c97d3... Merge remote-tracking branch 'origin/f16' (*)
  0e494a8... Merge remote-tracking branch 'origin/f15' (*)
  e660387... Merge remote-tracking branch 'origin/el6' (*)

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