0.18.1

CHANGELOG

Improvements
Bug fixes in find_markers_by_regression and find_markers_by_rank causing unnecessary dataframe (gene-wise chunk) renaming on the wrong axis
Bugfix in handle_download causing wrong tar extraction target
Bugfix in _scatter_make_colors causing wrong cmap choice
plot_marker_heatmap raises error now when no marker gene is found

Documentation changes
Removed Dask warning from homepage
code style made black-like on all the vignettes

Dev notes
Dask requirement pinned >=2020.8.1
Reblackened code