Just found this online. Apparently the origional page is dead, but google
has cached it.

http://www.google.com/search?q=cache:lTJRondwlQgC:burtleburtle.net/bob/hash/doobs.html+hash+hashing+rotate&hl=en

Now, do we want to consider using this or something like it for squeak?

BTW, we might be able to make hashing strings and byte arrays go a bit
faster, by, say, only hashing the first 100 bytes.

Scott