Update chart.js to version 2.1.3 🚀

[greenkeeperio-bot]

Hello 👋

🚀🚀🚀

chart.js just published its new version 2.1.3, 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 chart.js – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging 🌴

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GitHub Release

This release adds a new call that plugins can use afterScaleUpdate which is useful for performing actions that require the scales to be in their final sizes.

Enhancements

• Adds a ticks.minRotation to control the minimum tick rotation on axes. Thanks @tomduncalf
• Adds new plugin call for afterScaleUpdate. Thanks @Tarqwyn

Issues Fixed

• Fixed a documentation issue regarding stacked bars. Thanks @cw0102
• Fixed a typo in the scale documentation. Thanks @matt-watson90
• Allow canvas pattern objects to be passed as colours. Thanks @ashiguruma

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The new version differs by 1513 commits .

• 691a7c6 Update doc files for ticks.minRotation
• eb05588 2.1.3 release
• 66a9459 Merge branch 'tomduncalf-iso_weekday'
• 8c20940 Merge branch 'iso_weekday' of https://github.com/tomduncalf/Chart.js into tomduncalf-iso_weekday
• 41c043d Merge branch 'master' of https://github.com/nnnick/Chart.js
• 6de81a3 Merge branch 'tomduncalf-label_offset'
• 47f770c Merge pull request #2524 from ashiguruma/master
• a8df9d9 Merge branch 'master' of github.com:ashiguruma/Chart.js
• 05bfb7e Added CanvasPattern global flag for jshint
• 44cc68d Added CanvasPattern global flag for jshint
• 38df95e Merge pull request #2531 from matt-watson90/patch-1
• 1c1bf1c Merge pull request #2530 from cw0102/master
• 41bf241 Fixed copy paste error in 01-Scales.md
• a6017a4 Update 03-Bar-Chart.md
• 7ee5af8 Add labelOffset option to scales

There are 250 commits in total. See the full diff.

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