Update webpack to the latest version 🚀

[greenkeeper]

Version 3.6.0 of webpack just got published.

Dependency	webpack
Current Version	3.5.6
Type	devDependency

The version 3.6.0 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 webpack.
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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Release Notes

v3.6.0

Bugfixes

• Using folder names on CLI now correctly uses folder as entry (@gyandeeps)
• Assign correct cache object to child compiler (@sokra)

Commits

The new version differs by 17 commits.

• 6226759 3.6.0
• 2b1046e Merge pull request #5671 from webpack/bugfix/child-cache
• 3d99168 remove unused code, add todo comment
• 46432c4 add test for notCacheable in CachePlugin
• 460e6b6 remove incorrect tests
• 0975d13 assign correct cache to child compilation
• cc03d8e fix sponsors list for opencollective API changes
• f6285d2 Merge pull request #5652 from JLHwung/remove-duplicate-eslintrc-configuration-item
• 5463c1e add next PR label
• d87c88e Merge pull request #5517 from webpack/ci/travis
• 2f428aa CI improvements
• 9e14196 update to newer travis image
• 44df871 chore(eslint): remove duplicate configuration item
• 2206ee0 Merge pull request #5625 from gyandeeps/issue5576
• 4f5e78b Use statsSync isDirectory to check dir

There are 17 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 🌴

[coveralls]

Coverage remained the same at 100.0% when pulling 59878fa on greenkeeper/webpack-3.6.0 into fa3ab78 on master.