Foodcritic and metadata fixes

We should have the name attribute on metadata.
FC043: Prefer new notification syntax: cookbook-cinder/recipes/api.rb:91
FC043: Prefer new notification syntax: cookbook-cinder/recipes/scheduler.rb:49
FC043: Prefer new notification syntax: cookbook-cinder/recipes/volume.rb:61
FC043: Prefer new notification syntax: cookbook-cinder/recipes/volume.rb:84