This changeset will detect if the defined temporary resource group
already exists. If it does, it will not destroy it, but clean up
every resource required for building that is created by Packer
individually, both on success and failure.
Unit tests have been fixed, but more tests should be added for the new
functionalities.
* azure-sdk-for-go to 3.1.0-beta
* go-autorest to 7.0.7
* dgrijalva/jwt-go to 3.0.0
Add the German cloud configuration.
Ensure the different cloud URLs are _actually_ used.
