ivansafrin/Polycode — pull request #111 by dannywarren (2012-06-18 08:38:26+00:00)
Title: Updated external libpng download url in dependencies cmake script

* 1.5.10 release appears to have been moved to "history" folder on libpng mirror
* this is not yet reflected on the main libpng site, their links to this mirror are broken as well
* the 1.5.11 release appears to be the new stable, but this has not been announced on the libpng site yet