* Support building on systems that lack asprintf.
* mercurial getctime is currently broken, apparently by some change in
mercurial version 0.9.4. Turn the failing test case into a TODO test case.
* Add a test suite for the svn backend.
* Daemonize before sending RPC pings, since that can take a while
and/or hang.
* Daemonize before sending commit mails, as that can also take a long
time/hang if the mail server is unhappy.
* Factor out commit mail sending code into new function.
joey