[yaz/epel7] (4 commits) ...Merge branch 'master' into epel7

[Christopher Meng]

Summary of changes:

  a5b7adb... Update to 5.2.0 (*)
  f8b8469... Update to 5.2.1 (*)
  d33419b... Update to 5.3.0 Enable redis support(hiredis) Drop obsolete (*)
  5956576... Merge branch 'master' into epel7

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