Move nova-network tests into tests/unit
Move nova-network tasks to tasks.network.nova subpackage

Also add plugin layer to tasks.network
Add Neutron client to Cloud objects
initial neutron supporting commit
Neutron network migration tasks
pep8 fixes
fixed multiple pep8 warnings and typos
Fixed multiple typos
Added neutron exception
Fixed create_network call
create_subnet->create_network
Fixed create_subnet implementation
Retrieve all resources with filter
Fixed typo in delete_subnent call
Neutron list_network accepts tenant id and network id
Fix typo in port context value
Port filter changed
get_port_by call from del_port
Add query filters for networks and secutiygroups
Default entity properties
Change required properties check
fix many typos
subnet filter implementation