Rearranged test.
Added skeleton for testing de/allocate ips
Tested allocate_ip_address with no subnets.
Merge branch 'master' into testing_ipam_ip
Added test for successful ip address allocation
add TODO
Added tested for deallocate of ip failure.
Added test for deallocating ip addr. on one port
Added test for deallocating ip addr. w/ two associated ports
Added consistency for booleans.
Added test to allocate_ip_address twice on one port.
Added test for allocating ip address from previously deallocated address, succesfully.
Added test for allocating ip address from previously deallocated address, failing reuse_after param.
Added test for failure to allocate ip on fully allocated subnet.
pep8 cleanup
Added tenant_id as argument to allocate_ip_address
Removed redundant code.
Added test for subnet selection on ip allocation.
Added test for net_id filter on new ip address allocation.
Added test for net_id filter on deallocated ip address allocation; fixed bug in previous test.