Tilty

BUG FIXES:

* Hotfix: fix keyerror in datadog emitter

IMPROVEMENTS:

* Add more logs to webhooks emitter

BUG FIXES:

* Fix webhook not using headers as a dict

SECURITY:

* Bump urllib3 for CVE-2019-11324

IMPROVEMENTS:

* Add support for google sheets emitter: https://github.com/myoung34/tilty/pull/24

IMPROVEMENTS:

* Add support for stdout emitter: https://github.com/myoung34/tilty/pull/23
* Add Type annotations and basic mypy: https://github.com/myoung34/tilty/pull/22
* Refactor logging and add 'logging_level' to [general] config section: https://github.com/myoung34/tilty/pull/21
* Refactor to use dynamic loading and separate initialization from emit(): https://github.com/myoung34/tilty/pull/20

FIXES:

* Fix initialization, add custom exceptions
* Fix poetry/makefile bootstrapping
* Fix bandit

IMPROVEMENTS:

* Hotfix: fix dockerfile, something in python-alpine is broken on HCI