Light-curve

Added

- `mcmc_niter` and `lmsder_niter` parameters of `*Fit` features

Changed

- Amd64 PyPI packages are manylinux2014
- PyPI releases compiled with `gsl` feature enabled

Deprecated

- `gsl` will become a default feature in future releases

Fixed

- `*Fit` `algorithm` parameter was marked as optional in the docstrings

Added

- This `CHANGELOG.md` file
- `BazinFit` is enabled
- `VillarFit` feature

Changed

- Remove `DmDt.point_from_columnar` and `DmDt.gausses_from_columnar`
- Update `ndarray` to 0.15.3 and `light-curve-dmdt` to 0.4.0
- Update `rust-numpy` and `pyo3` to 0.14
- Update `light-curve-feature` to 0.3.1
- Rename `nonlinear-fit` Cargo feature to `gsl`
- Docstrings improvements

[0.2.x] pre 2021-05-31

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[0.1.x] pre 2020-09-09

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