stderrlog 0.2.3

Logger that logs to stderr based on verbosity specified
Documentation
# ChangeLog

## 0.2.3

### Added

- clap example
- support timestamps with microsecond and nanosecond granularity

### Changed

- improved performance (https://github.com/cardoe/stderrlog-rs/pull/2)
- improved docopt example in README
- migrated from time to chrono

### Thanks

- Thanks to Zachary Dremann <dremann@gmail.com> for the performance
  improvements and the nudge to improve the docs.