Add libpng 1.2.50
Add zlib 1.2.8
Port to Visual Studio Express 2008
Link with our static libraries
Reset file handle after fclose (Windows)
Update Visual Studio files to build Release version
Update Visual Studio files to build Release version
Update Visual Studio files to build Release version
Uncomment configure commands in build scripts
Move subset of libpng and zlib to src
Move subset of libpng and zlib to src; eliminate HAVE_LIBPNG ifdefs

Also update linux/build scripts to exclude local libpng and zlib source files
from compilation. The zlib files won't compile with g++.
Move subset of libpng and zlib to src; eliminate HAVE_LIBPNG ifdefs

Update Visual Studio files accordingly.
Sync with cvs.sourceforge.net
Compile libpng and zlib on linux, eliminate shared lib dependency
Sync with cvs.sourceforge.net