[thunderbird] (5 commits) ...Merge branch 'master' into epel7

[Jan Horak]

Summary of changes:

  d99ecfb... Fixed nss version for epel (*)
  d783023... Fixed nss version for epel (*)
  8134219... Fixed nss version again (*)
  705b2a1... Fixed apply of nss patch (*)
  c78a1d4... Merge branch 'master' into epel7 (*)

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