[rdnzl-announce] New version 0.7.1/0.4.1

This fixes a bug where single floats were always boxed as double floats. Thanks to Andrew Wolven for catching it. <http://weitz.de/files/RDNZL.tar.gz> <http://weitz.de/files/RDNZL_cpp.tar.gz> Cheers, Edi.