Omikuji

What's Changed
* Drop support for Python 3.6 by tomtung in https://github.com/tomtung/omikuji/pull/41
* Update simple_logger to avoid throwing local-time-related error during logger initialization by tomtung in https://github.com/tomtung/omikuji/pull/40
* Support loading symlinked model files by tomtung in https://github.com/tomtung/omikuji/pull/39
* Upgrade clap to version 3.0 by tomtung in https://github.com/tomtung/omikuji/pull/42


**Full Changelog**: https://github.com/tomtung/omikuji/compare/v0.4.1...v0.5.0

What's Changed
* Limit number of label candidates per leaf for prediction by tomtung in https://github.com/tomtung/omikuji/pull/36


**Full Changelog**: https://github.com/tomtung/omikuji/compare/v0.4.0...v0.4.1

What's Changed
* Change weight matrix storage to significantly speed up prediction while using less memory by tomtung in https://github.com/tomtung/omikuji/pull/33
* **Note: this breaks compatibility of saved model files**


**Full Changelog**: https://github.com/tomtung/omikuji/compare/v0.3.4...v0.4.0

What's Changed
* Downgrade `sprs` to 0.9 to fix training speed regression by tomtung in https://github.com/tomtung/omikuji/pull/32

**Full Changelog**: https://github.com/tomtung/omikuji/compare/v0.3.3...v0.3.4