[pngcrush/f20] (4 commits) ...new upstream release + add man page from Debian sid

[François Cami]

Summary of changes:

  23966af... New upstream release. (*)
  309ae13... - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass (*)
  e91d19f... - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_M (*)
  4fe42ad... new upstream release + add man page from Debian sid (*)

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