What's Changed
* add remove all option by kokoteen in https://github.com/kokoteen/pirg/pull/58
* rename find_requirements_file -> check_for_requirements_file by kokoteen in https://github.com/kokoteen/pirg/pull/60
* add update all option by kokoteen in https://github.com/kokoteen/pirg/pull/61
* add specifier set instead of version by kokoteen in https://github.com/kokoteen/pirg/pull/63
* add version flag (64) by kokoteen in https://github.com/kokoteen/pirg/pull/65
* update logging by kokoteen in https://github.com/kokoteen/pirg/pull/69
**Full Changelog**: https://github.com/kokoteen/pirg/compare/v1.1.1...v1.2.0