[libvirt] PATCH: 0/2: port QEMU driver to new XML apis

[Daniel P. Berrange]

The next two patches port the QEMU driver over to the new APIs. This is
a fairly straightforward exercise since the new APIs are derived from
the currenty QEMU driver impl. Aside from a mass deletion of code the rest
is mostly just renaming function calls / objects. The test suite passes
and I can start VMs, so this is reasonably ready to commit (depends on 
the earlier patches of course)

Daniel
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