* Cloudscale integration test setup
CloudProvider and CloudEnvironment classes for Cloudscale integration
tests. This also contains a cloudscale_common role with common
variables for all tests.
* cloudscale_volume module
New cloud module to manage volumes on the cloudscale.ch IaaS service.
* Refactor cloudscale API code
Move code common to all cloudscale cloud modules into a common base
class.
This is needed as a prepartion of the cloudscale_floating_ip module.
* cloudscale_floating_ip module
New cloud module to manage floating IPs on the cloudscale.ch IaaS
service.