Updating dead links from voxel.dl.sourceforge.net

Updated 2 dead links for voxel.dl.sourceforge.net (working as of March 11th, 2013)

Dead Links:
1) http://voxel.dl.sourceforge.net/project/gs-fonts/gs-fonts/8.11%20%28base%2035%2C%20GPL%29/ghostscript-fonts-std-8.11.tar.gz
2) http://voxel.dl.sourceforge.net/project/wvware/libwmf/0.2.8.4/libwmf-0.2.8.4.tar.gz

Replaced respecitvely by:
1) https://ghostscript.googlecode.com/files/ghostscript-fonts-std-8.11.tar.gz
2) http://pkgs.fedoraproject.org/repo/pkgs/libwmf/libwmf-0.2.8.4.tar.gz/d1177739bf1ceb07f57421f0cee191e0/libwmf-0.2.8.4.tar.gz