[et-mgmt-tools] Support for kvm/qemu cache mode

[Cole Robinson]

Ben Kochie wrote:
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> Ok, thanks for all the off-list help.
> 
> Here's my patch for adding cache support to virt-install.  I'm not super
> happy with the xml if/elif bits at VitualDisk.py:681, but that part of
> the code is a bit tricky anyway.
> 
> http://ben.nerp.net/virtinst/cache-support-v4.diff
> 
> There are some other logs and output examples in the dir:
> 
> http://ben.nerp.net/virtinst/
> 
> It would be great to get this in for the next release.
> 
> - -ben
> 


Fixed this up to work with some VirtualDisk xml tweaks I had done, and
applied:

http://hg.et.redhat.com/cgi-bin/hg-virt.cgi/applications/virtinst--devel/rev/52032ccd3372

Thanks!

- Cole