[libpng10] (7 commits) ...Merge branch 'master' into el6

[Paul Howarth]

Summary of changes:

  bac6959... Fix typo that causes a failure to update the common directo (*)
  05f5bf6... resync with devel; 1.0.53 is more resistant to hostile PNGs (*)
  8effdba... Initialize branch EL-6 for libpng10 (*)
  c5a75fe... Update changelog to add CVE reference (*)
  5e67c29... - update to 1.0.54 - fixes CVE-2010-1205 (out-of-bounds wri (*)
  f5c8898... dist-git conversion (*)
  4742e99... Merge branch 'master' into el6

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