Drop version from directory names
Use VTK_PYTHON_SETUP_ARGS instead of patch to set python install dir
Drop several patches fixed upstream
Remove rpaths from all hand installed binaries (Bug 744437)
Don't link against OSMesa (Bug 744434)
Add patch to make using system libraries easier
Update pythondestdir patch to use --prefix and --root
Use system gl2ps and libxml2
Use standard cmake build macro, out of tree builds
Add patch from upstream to add sonames to libCosmo and libVPIC (bug #622840)