use libvirt to install a virtual machine
add CreateXML and DefineXML bindings
change qcow2 to raw, I do not know why type qcow2 can not be detect by qemu
remove vminstallbin
add interace VolumeXMXEncoder
change to qcow2 in domain.xml; add reportStatus
finish vminstall binary
fix <on_boot> to </on_boot>
add defer
add Disk info to VirtualMachine
put nmap and parsexml to where they should stay
use utils.ParseXMLData
Merge branch 'devel-install' of https://github.com/thesues/catkeeper into devel-install
move function LocalIP to utils
merge branch devel-install
finish delete api