Add some documentation explaining some of the minor quirks in
AFS::ukernel; specifically how some functions look a bit different
than in plain libuafs.
Change-Id: Ib8b18720c3fa6087de98d58ba8381f1ae4fb2f10
Reviewed-on: http://gerrit.openafs.org/3902
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
