[OpenAFS-port-darwin] openafs Mac OS 10.1 port

[Joseph Jackson]

Brian,

How does your experience mesh with what Chaskiel and I saw? With 
Chaskiel's changes the moment a write() call hits AFS, the system 
panics. All other aspects of the system seemed okay under very limited 
testing. I was able to authenticate, read files and directories, and 
create files with no problems. So I could do "touch foo" but not "echo 
test > foo". Did your changes work out better?

Joe Jackson,
Carnegie Mellon University.