[rackspace|compute] switching default compute provider to Fog::Compute::RackspaceV2
Merge branch 'master' of github.com:fog/fog into default_v2
Merge branch 'master' of github.com:fog/fog into default_v2
[rackspace|compute_v2] fixing broken tests
[vcloud_director] Fix module name.
Merge pull request #2116 from rackspace/default_v2

[Rackspace|Compute] Make Next Gen Servers the default server implementation for Rackspace
[openstack|compute] Add support for config_drive
[vcloud_director] make available to Fog::Bin
[vcloud_director] add keys to Errors.missing_credentials
Merge pull request #2117 from nosborn/vcloud_director_module_name

[vcloud_director] Fix module name.
Merge pull request #2119 from frodenas/config_drive

[openstack|compute] Add support for config_drive
[Brightbox] Servers can now have their groups updated

The support was already there in fog, this code just adds documentation
comment for it
[Brightbox] Switches to new format helper

Using #data_matches_schema which correctly fails when a nullable
resource is absent.
[Brightbox] Expands on some tests

Starts checking fields that should have been altered by a request have.
[Brightbox] Adds missing images attributes
[Brightbox] Breaks schemas from test helper
Merge pull request #2124 from brightbox/brightbox_updates

Brightbox updates