implement cloneNode

0.6.15 (observablehq#2082)

0.6.14 (observablehq#2021)

0.6.13 (observablehq#1948)

0.6.12 (observablehq#1934)

* 0.6.12 CHANGELOG.md

* cha-cha-changes

* 0.6.12

* more badges

* observable10

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Co-authored-by: Mike Bostock <[email protected]>

test:tsc in CI (observablehq#1865)

0.6.10 (observablehq#1802)

* Update CHANGELOG

* changes

* Update CHANGELOG

* 0.6.10

* update version badges

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Co-authored-by: Philippe Rivière <[email protected]>

0.6.9 (observablehq#1727)

* Update CHANGELOG

* Update CHANGELOG.md

* Update CHANGELOG.md

* gods tree & barycentric fix (observablehq#1729)

* gods

* fix barycentric

* Update CHANGELOG

---------

Co-authored-by: Mike Bostock <[email protected]>

* Update CHANGELOG

* leaner barycentric before/after image

* Update CHANGELOG

* Update CHANGELOG

---------

Co-authored-by: Philippe Rivière <[email protected]>

0.6.8

0.6.7