Update libpng to 1.4.20
authorAndre Heinecke <aheinecke@intevation.de>
Tue, 17 Jan 2017 11:03:36 +0000 (12:03 +0100)
committerAndre Heinecke <aheinecke@intevation.de>
Tue, 17 Jan 2017 11:03:36 +0000 (12:03 +0100)
commit4fac073df226fed146ec9c1c222dd192a57dac11
tree95391d3b16aba1c212a6241b3e317d67097d5f41
parenta3601773da993616208b12cb2e0c8e06970b32d7
Update libpng to 1.4.20

* packages/packages.current: Update libpng
packages/packages.current