Added changes for network-ids option.
Fixed broken test for group list.
Unit test for --netword-ids option.
Added changes for network-ids option.
Fixed broken test for group list.
Unit test for --netword-ids option.
Merge branch 'pd-add-network-id-option' of https://github.com/opscode/knife-openstack into pd-add-network-id-option
remove spaces
Merge pull request #114 from opscode/pd-add-network-id-option

Added network id option to server create command