Manheim-c7n-tools

------------------

------------------

------------------

* Fixes `67 <https://github.com/manheim/manheim-c7n-tools/issues/67>`__ - Add ``check_deprecations="yes"`` for Validate stage

------------------

------------------

* Fixing dryrun-diff bug to show changes to inherited policies.
* Remove `git diff` comparison; Now we compare results of full dryrun to last live-run

------------------

* Fixes `56 <https://github.com/manheim/manheim-c7n-tools/issues/56>`__ - Bump c7n version from 0.9.4 to `0.9.10 <https://github.com/cloud-custodian/cloud-custodian/releases/tag/0.9.10.0>`__ and c7n-mailer from 0.6.3 to 0.6.9.
* Bump relax boto3 and botocore dependencies to work with c7n and new pip resolver.
* Add testing under Python 3.9; switch default Python version for tox/TravisCI to 3.9.
* Bump base Docker image to latest ``python:3.9.1-alpine3.12``
* Implement :ref:`policies.notify_only`.
* Fix failing test.