* Update Shippable integration test groups.
* Update integration test group aliases.
* Rebalance AWS and Azure tests with extra group.
* Rebalance Windows tests with another group.
* Fix setting the cache when refresh_cache or --flush-cache are used
* Use jsonify function that handles datetime objects in jsonfile cache plugin
* Don't access self._options directly
* Add initial integration tests for aws_ec2 inventory plugin
* Add CI alias
* Fix and add a few more unit tests
* Add integration tests for constructed
* Fix typo
* Use inventory config templates
* Collect all instances that are not terminated by default
* Create separate playbook for setting up the VPC, subnet, security group, and finding an image for the host
Create a separate playbook for removing the resources
* Allow easier grouping by region and add an example
* use a unified json encode/decode that can handle unsafe and vault
