[racket] cool things in Whalesong, part 2

Small update on Whalesong: here's an example that binds to Google Maps
through the FFI:

   http://hashcollision.org/tmp/maps/test-maps.html

Here's the source code:

   http://hashcollision.org/tmp/maps/test-maps.rkt

The library that provides the gmap support is:

   http://hashcollision.org/tmp/maps/maps.rkt


My apologies for not getting a fresh release of Whalesong out on
PLaneT!  I hope to get that ready at the end of this week at the
latest.