Added changes to make rspec test DRY
Added changes to make rspec test DRY
Merge branch 'pd-refactor-rspec-tests' of https://github.com/opscode/knife-openstack into pd-refactor-rspec-tests

Conflicts:
	spec/unit/openstack_network_list_spec.rb
	spec/unit/openstack_server_delete_spec.rb
Merge pull request #122 from opscode/pd-refactor-rspec-tests

[knife-cloud] Refactor rspec tests