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.
This is last merge that will happen from the github.com/Azure/packer-Azure
repository. All development is being over to this repository.
The biggest change in this merge is support for Windows. There are a few other
fixes as well.
* If the user cancels the build, clean up any resources.
* Output a reasonable build artifact.
* Log requests and responses with Azure.
* Support for US Government and the China clouds.
* Support interrupting long running tasks.
* Allow the user to set the image version.
* Device login support.
