Update to cmake-3.4.0 Update to harfbuzz-1.0.6 Update to freetype-2.6.1 Update to libpng-1.6.19
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/branches/systemd@16674 af4574ff-66df-0310-9fd7-8a98e5e911e0