blueprint xenapi-network-info-model
updated xenapi to use the new network info models
also:
updated virt firewall to handle both old version and new hotness
made a few minor changes to the network info model
moved the legacy converstion shim from compute/utils to the model itself
wharrgarbl'd a few of the tests
NOTE: no unittests were skipped during the creation of this patch
Change-Id: Ib77dd2bf4f0a525b73800441f19013e842c77f98
4b163a401e