Comment out the application of libvirt and nova sql patches.

I left the application of the patches in the code, just commented out as we will probably want to add them back in at some point soon.

2014.1.3 seems to resolve most of the boot-from-volume issues we were having.

Snapshotting is still copying to local disk however, and we will file an upstream ticket with Ubuntu to patch their distro.

fixes #362