Update chart.js to version 2.1.4 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

chart.js just published its new version 2.1.4, 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 :palm_tree:

---

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

• Performance and minification improvements. See #2491 #2545 #2549 #2551 #2578 #2612 Thanks to @simonbrunel and @niemyjski for their help with performance improvements.
• Provide default tooltip callback implementations for horizontal bar charts #2536
• Added bubble chart docs #2594
• Added a new setting, gridLines.drawBorder to allow hiding the border along the edge of an axis. #2574 Thanks @Ceane Documentation files have been improved for basic configuration and axes. See #2625

Issues Fixed

• Fixed horizontal bar outline #2537
• Fixed line tension docs #2535
• Fixed a syntax error in a sample #2568 Thanks @niemyjski
• Error when the first data point for a chart using a time scale was null #2519
• Fix an issue where the last tick overlapped. #2589 Thanks @haschu
• Fix an issue with bar widths when there are a lot of bars. #2216
• Fix an issue with scatter lines charts when the X value is passed as a moment js object. #2588 Thanks @AllenJB
• Fixed an issue with the doughnut doc labels. #2406
• Doc did not have a note about selecting the correct build #2288
• Null data affected tooltip position #2567
• Documentation chart colours were inconsistent. #2593

---

The new version differs by 1609 commits .

• 40d76b6 2.1.4 release
• 1801f56 Merge pull request #2645 from Rowno/patch-1
• 127ed8d docs: fix the bar chart default axis id's
• 8876cd8 Merge pull request #2625 from chartjs/fix/2344
• 93e5e52 Merge branch 'master' into fix/2344
• 81aedf4 Fix scale typos
• 451a9a4 Fix #2418 Firefox old version compatibility
• 07b7db1 This fixes documentation issue #2628
• 1fc71a4 Decomplexify Chart.core.controller.eventHandler
• 07595d3 Refactor controller scale methods
• 381aeaa Refactor addElements and addElementAndReset
• d513ba0 Refactor scale base pixel and point calculation.
• e78d06d Clean up gulpfile even more
• 1fe78eb Clean up gulpfile
• f2cb762 Helpers improvements

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

---

This pull request was created by greenkeeper.io. It keeps your software up to date, all the time.

_{Tired of seeing this sponsor message? Upgrade to the supporter plan! You'll also get your pull requests faster :zap:}