Also, updated requirements with a new package being used
and added a LICENSE file.
* Creating and removing stacks
* Waiting for resource status to be complete
* Loading Heat template
This stack will be shared by all the tests we'll create.
Also added a README.
One for pre upgrade (creating the stack and all the related
resources) and for post upgrade to verify it's still reachable.
Including required files for installing and
packaging the project.
To allow merging patches.