libvirt/xen: switch by default to VNC consoles on unix domain sockets
libvirt/xen: switch by default to VNC consoles on unix domain sockets

djs55/xenopsd,thomassa/xenopsd,cheng--zhang/xenopsd,thomassa/xenopsd,simonjbeaumont/xenopsd,koushikcgit/xenopsd,euanh/xenopsd,cheng--zhang/xenopsd,cheng--zhang/xenopsd,thomassa/xenopsd,euanh/xenopsd,simonjbeaumont/xenopsd,djs55/xenopsd-previous,koushikcgit/xenopsd,simonjbeaumont/xenopsd,djs55/xenopsd,koushikcgit/xenopsd,johnelse/xenopsd,djs55/xenopsd-previous,johnelse/xenopsd,euanh/xenopsd,djs55/xenopsd,johnelse/xenopsd,djs55/xenopsd-previous