What's Changed
* add optimize flag to Direct by 2sn in https://github.com/conradtchan/starfit/pull/141
* fix ejecta for multi-db by 2sn in https://github.com/conradtchan/starfit/pull/142
* ensure covariances are set to zero (python) and not used (Fortran) if… by 2sn in https://github.com/conradtchan/starfit/pull/143
**Full Changelog**: https://github.com/conradtchan/starfit/compare/0.13.3...0.13.4