[Crawl-ref-discuss] Dungeon Sprint

[a s <uni...@gm...>]

With a lot of help from Napkin on using git, I have made Dungeon Sprint
based on git master instead of based on 0.5.2; the source code is available
for download on this page:

http://sites.google.com/site/crawlvariations/dungeon-sprint

...and dungeon-sprint is now its own branch in git.