* Add timeout support to ansible-test.
* Fix ansible-test tar filename filter bug.
* Update timeouts used on Shippable.
* Kill subprocesses when parent process terminates.
* Require explicit use of env --show option.
It is currently supported only with the `--remote` option.
This makes it easier to troubleshoot new instances which are not
yet supported by the setup scripts used by ansible-test.
* Fix ansible-test smoke tests across groups.
* Fix ansible-test list arg defaults.
* Fix ansible-test require and exclude delegation.
* Fix detection of Windows specific changes.
* Add minimal Windows testing for Python 3.7.