[vcloud_director] Fix module name.
[vcloud_director] expose vm_network#ip_address
Merge branch 'vcloud_director_vm_network' into idap

* vcloud_director_vm_network:
  [vcloud_director] expose vm_network#ip_address
[vcloud_director] make available to Fog::Bin
[vcloud_director] add keys to Errors.missing_credentials
Merge branch 'vcloud_director_module_name' into idap

* vcloud_director_module_name:
  [vcloud_director] add keys to Errors.missing_credentials
  [vcloud_director] make available to Fog::Bin
  [vcloud_director] Fix module name.