[armadillo/el6] (8 commits) ...Merge branch 'master' into el6

[rcurtin]

Summary of changes:

  32e0144... - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_M (*)
  b32488e... update to 4.450.0 (*)
  c482706... update to 4.500.0 (*)
  6b9e743... update to 4.550.0 (*)
  3e9825f... Update to 4.550.2 for gcc 4.4 bug. (*)
  9c05581... Update to 4.550.2 for gcc 4.4 bug, which is relevant on EL6 (*)
  2b8ec9a... update to 4.550.2 (*)
  533f624... Merge branch 'master' into el6

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