Improve the models to work with the current api version. add tests
that use fake-data, that was captured from a real vCloud.
Also removed a couple of dead code. Tests have been added for
everything that changed or have been added. All the existing but
untouched parts have not been tested.
After reading the API doc, in my opinion networks work different than
currently implemented here. To get the basic stuff working, we remove
all the code with unkwown implementation.
