Re-generate documentation fixtures.
Add 'name' argument to key pair importing examples

Closes #232.

Signed-off-by: Tomaz Muraus <tomaz@apache.org>
Fix lint.
docs: Add examples of how to retrieve balance and use ex_avoid.
When creating a CloudSigma node, assign public interface to the node.
docs: Add more examples to CloudSigma driver page.
Quick hack for providers which support multiple API versions.
Add name attribute to all OpenNebula driver classes.
Re-generate documentation fixtures.
Add methods for listing availability groups to the CloudSigma driver.
When a request is made to a CDN endpoint there is no internalURL to use, we have to fall back to the publicURL

Closes #231

Signed-off-by: Tomaz Muraus <tomaz@apache.org>
Add a comment, use a better variable name.
Fix lint issues.
Update CHANGES.
docs: Add info on how to use ex__list_availability_groups method.
Allow user to pass ex_avoid argument to ex_create_drive and ex_clone_drive
method.
fix docs for HP Cloud

Signed-off-by: Tomaz Muraus <tomaz@apache.org>
specify url and path for HP Cloud OpenStack examples

Signed-off-by: Tomaz Muraus <tomaz@apache.org>
Fix lint.
docs: Update commiter guide.