Support napari>=0.5 (#274)

* Remove as_dict kwarg

* Pin to napari >= 0.5

* Fix scatter test?

* Update test image

* Fix brain data

* Fix another as_dict arg

* Fix FutureWarning

* Fix scatter test's OverflowError

And revert to original baseline images.

* Try updating mypy's python version.

* Revert shape → newshape and suppress deprecation warning.

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Co-authored-by: Sam Cunliffe <[email protected]>
Co-authored-by: Sam Cunliffe <[email protected]>

Merge pull request #260 from dstansby/valid-layer-selection

Only update layers when selection is valid

Merge pull request #273 from dstansby/check-ci

Pin maximum napari version

Merge pull request #253 from matplotlib/dstansby-patch-1

Add 2.0.1 changelog

Merge pull request #246 from dstansby/2.0clog

Add changelog for 2.0

Merge pull request #228 from dstansby/120-clog

Add changelog for version 1.2.0

Merge pull request #148 from jo-mueller/add-feature-histogram

added a Feature Histogram Widget

Merge pull request #190 from dstansby/unpin-napari

Make compatible with napari 0.4.18

Merge pull request #189 from dstansby/pin-napari

Pin max verison of napari

Add write token