New Features
* Read proxy url from environment variable
* Add support for http proxy
* Add parsing and checking of proxy urls
Fixes
* Update dependencies
Refactorings
* merging if statement in parse_proxy_url
Docs
* Update README.rst
Others
* Change classifiers in pyproject.yaml
* Add test to unset env variable with empty option
* Fix proxy env priority test for win32 platform
* Add testing of -x parameter
* Setup proxy server for testing
* Refactoring setup of webserver for testing
Full set of changes: [`v1.0.0...v1.1.0`](https://github.com/stdtom/ssl_certinfo/compare/v1.0.0...v1.1.0)