[hp|compute_v2] added security group support
[vcloud_director] fix typo as per #2621
[Brightbox] Remove old #destroy request

All the "destroy" methods were renamed to "delete" but this file was not
removed.
Merge pull request #2622 from alphagov/2621_fix_typo

[vcloud_director] fix typo as per #2621
Merge pull request #2623 from brightbox/remove_old_destroy_request

[Brightbox] Remove old #destroy request
Merge branch 'master' of github.com:fog/fog into hp_security_groups
[openstack] image.update_image_members expects are incorrect #2627
Merge remote-tracking branch 'upstream/master'
[openstack] Fix for OpenStack flavor id calculation.
Merge pull request #2628 from radekg/master

[openstack] image.update_image_members expects are incorrect #2627
extended IOPS support
Use case-insensitive header access for Location.
Fix case sensitivity of the Content-type header.
Merge pull request #2634 from smashwilson/location-header

[rackspace | queues] Use case-insensitive header access for Location.
Display number of instance store volumes per instance flavor.
[libvirt|compute] Allow volumes to have backing volumes
normalize requires syntax
ensure that each service requires its provider
openstack orchestration no longer depends on cloud formation
ensure that all services require their provider