Logger 3.0.0: log_warn and log_info shortcuts

If you use logger for an extended period of time it may be frustrating to write out the full name for logger.log_warning and logger.log_information. Starting in 3.0.0 you can now use the shorter form version logger.log_warn and logger.log_info.

We must thank Github user @hronek for submitting this idea and pull request.