'Network' object has no attribute 'dns' - regression in rev.1306

[Vladimir Popovski]

Seems like 'dns' field was removed from Network model, but it is still referenced in different places in the code:

2011-07-22 16:30:29,352 CRITICAL nova [-] 'Network' object has no attribute 'dns'
(nova): TRACE: Traceback (most recent call last):
(nova): TRACE: File "/home/vlad/cactus/vsa/nova/bin/nova-compute", line 48, in <module>
(nova): TRACE: service.serve()
(nova): TRACE: File "/home/vlad/cactus/vsa/nova/nova/service.py", line 369, in serve
(nova): TRACE: x.start()
(nova): TRACE: File "/home/vlad/cactus/vsa/nova/nova/service.py", line 138, in start
(nova): TRACE: self.manager.init_host()
(nova): TRACE: File "/home/vlad/cactus/vsa/nova/nova/compute/manager.py", line 149, in init_host
(nova): TRACE: self.driver.init_host(host=self.host)
(nova): TRACE: File "/home/vlad/cactus/vsa/nova/nova/virt/libvirt/connection.py", line 188, in init_host
(nova): TRACE: self.firewall_driver.setup_basic_filtering(instance)
(nova): TRACE: File "/home/vlad/cactus/vsa/nova/nova/virt/libvirt/firewall.py", line 534, in setup_basic_filtering
(nova): TRACE: network_info = netutils.get_network_info(instance)
(nova): TRACE: File "/home/vlad/cactus/vsa/nova/nova/virt/libvirt/netutils.py", line 94, in get_network_info
(nova): TRACE: 'dns': [network['dns']],
(nova): TRACE: File "/home/vlad/cactus/vsa/nova/nova/db/sqlalchemy/models.py", line 75, in __getitem__
(nova): TRACE: return getattr(self, key)
(nova): TRACE: AttributeError: 'Network' object has no attribute 'dns'