scalinggroup and first unit tests
more unit tests
use locally stored copies of WSDL documents for citycloud SOAP services
fixed minor validation bug
reduced number of network roundtrips: zone check against static list, track auth session age instead of asking api if token is still valid
more unit tests for scalinggroup
more unit tests
minor fixes and documentation
minor updates
wait for a cloned VM to become running before returning
updated documentation and bumped version to 1.1.0
list_service_idents need to be called on client init since different user accounts come with different zone identifiers
improved test readability
wait for removed VM to disappear from listing calls before returning
updated requirements
fixed merge conflict