Update d3-scale to version 0.9.0 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

d3-scale just published its new version 0.9.0, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of d3-scale – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging :palm_tree:

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GitHub Release

• Export to the global d3 in vanilla environments (d3/d3#2840).

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The new version differs by 9 commits .

• c2f525a 0.9.0
• 6a81928 Export to d3.
• d50b051 0.8.0
• f786d0c Prepare for minor release.
• e501956 Fix #63 - don’t assume ordinal & sequential.
• 5365d2b Fix #61 - add sequential.quantize.
• 15ea012 Simpler.
• 86f5db6 Update README.
• c67b838 Fix rounding in color ramps.

See the full diff.

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