Datasette-statistics

- Now packaged using `pyproject.toml`. [6](https://github.com/simonw/datasette-statistics/issues/6)

- Seven new statistical functions: `statistics_median_low()`, `statistics_median_high()`, `statistics_geometric_mean()`, `statistics_stdev()`, `statistics_pstdev()`, `statistics_variance()`, `statistics_pvariance()` - thanks, Łukasz Langa. [2](https://github.com/simonw/datasette-statistics/pull/2)

- Now works with text columns containing numbers, rather than raising an error. [1](https://github.com/simonw/datasette-statistics/issues/1)

- Initial release.