libpng 1.6.30-2

[Yaakov Selkowitz]

The following packages have been uploaded to the Cygwin distribution:

* libpng16-1.6.30-2
* libpng16-devel-1.6.30-2
* libpng-devel-1.6.30-2
* libpng-tools-1.6.30-2
* mingw64-i686-libpng-1.6.30-1
* mingw64-x86_64-libpng-1.6.30-1

libpng is the official reference library for the Portable Network Graphics 
(PNG) image format.

This is an update to the latest upstream stable release.  Please note that 
the native 1.6.30-1 was broken and should not be used.

--
Yaakov