[PATCH 0/3] git-daemon hacking

I've just been playing around a bit with the git-daemon.  My main
objective was to implement the feature in the third patch, namely to
allow users to publish their own repositories even though the daemon was
mainly locked down to serving from a particular central tree.  This is
the same idea as allowing a web server to serve files in a user's
~/public_html directory.

But I also fixed a couple of bugs I found on the way.

-- [mdw]