[Libguestfs] [PATCH 0/7] Better testing of the guestfsd daemon.

Currently we are unable to properly run guestfsd (the daemon) under valgrind. Attempts to run valgrind inside the appliance have not been successful (see patch 1/7). However we desperately need better valgrind coverage of the daemon, particularly because it is doing a lot of complex parsing of program output. This has been a problem for a long time. A better way to attack this problem is to run the daemon as a regular host process and connect libguestfs directly to it. Because of 'libguestfs live' functionality this is quite simple: we are able to connect the library to any Unix domain socket and talk directly to the daemon. This patch series modified the daemon so it can be run as a standalone process listening on a Unix domain socket, adds new tests which run the daemon as a host process, and a simple framework to run the daemon under valgrind. Rich.