* Add auth key for OpenStack Volume Provider
For adding OpenStack Volume Provider we need to also add auth key,
value, for Ceph. This patch allows to add/update/remove auth keys.
Also fixing the issue for attach cinder SD to the datacenter.
* Fixing documentation
* Small fixes in ovirt_external_provider module.
Fixed doc for param and small changes.
* Fix comments from review.
Adds conditions for check mode.
* Move update auth key method in the module
* Remove empty line which pep8 complains about
* First batch of modules renamed from plural to singular
Related to this proposal: https://github.com/ansible/proposals/issues/10
* Emit rename deprication warning
* Update legacy-files.txt and skip.txt to reflect new names