fuse

It would be good to have a FUSE filesystem for restoring data. --liw

I didn't get very far today, but here's a draft: http://p.sipsolutions.net/d9720a80c9cc5e99.txt, there's still a lot of XXX in there but maybe it helps somebody get started. I probably won't have much time to work on it.

You start it with "obnam fuse /mountpoint", or you can do "obnam fuse -- -h" to get fuse help. Need the "--" so obnam doesn't parse the "-h" itself ...