Update core-js to the latest version 🚀

[greenkeeper]

Version 2.5.0 of core-js just got published.

Dependency	core-js
Current Version	2.4.1
Type	devDependency

The version 2.5.0 is not covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version of core-js.
Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.

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Commits

The new version differs by 99 commits.

• 63ae52d 2.5.0
• 998f32e update eslint
• 9025b48 add .of and .from methods on collection constructors to readme
• 20f055b add Array#flatten and Array#flatMap to readme
• 860efb6 fix a typo
• b9203ee update list of iterable DOM collections in readme
• b4c2e5e remove some unused variables, update changelog
• fc32be8 add Promise#try to readme
• ea82fd9 remove caching Function#name, fix #296
• fd850c3 add Promise#finally to readme
• a41dd09 fix IE11 WeakMap frozen keys after zloirock/core-js@a69f577
• 09f45b6 remove tests of excess DOM collections methods - FF have it, I don't think that removing those methods in core-js make sense
• d230280 fix the list of whitespaces in the Number constructor test
• 7c39430 move Array#flatten and Array#flatMap to stage 1 per July TC39 meeting
• d35736f move Promise#finally to stage 3 per July TC39 meeting

There are 99 commits in total.

See the full diff

Not sure how things should work exactly?

There is a collection of frequently asked questions and of course you may always ask my humans.

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Your Greenkeeper Bot 🌴