[tvtime/f17] (4 commits) ...fix #829901: errors in setting of the _NET_WM_ICON property

[Tomas Smetana]

Summary of changes:

  63e4606... fix ftbfs, build against libpng15 (*)
  ff62856... - Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass (*)
  10103d8... fix #829901: errors in setting of the _NET_WM_ICON property (*)
  ae1c717... fix #829901: errors in setting of the _NET_WM_ICON property

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