Update mini-css-extract-plugin to the latest version 🚀

[greenkeeper]

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Version 0.3.0 of mini-css-extract-plugin was just published.

Dependency	mini-css-extract-plugin
Current Version	0.2.0
Type	devDependency

The version 0.3.0 is not covered by your current version range.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

It might be worth looking into these changes and trying to get this project onto the latest version of mini-css-extract-plugin.

If you have a solid test suite and good coverage, a passing build is a strong indicator that you can take advantage of these changes directly by merging the proposed change into your project. If the build fails or you don’t have such unconditional trust in your tests, this branch is a great starting point for you to work on the update.

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Release Notes

v0.3.0

Features

• add support for [contenthash]
• avoid adding duplicate CSS
• add support for preloaded and inlined CSS

Commits

The new version differs by 14 commits.

• f379ee1 0.3.0
• ff72885 docs: add information about minimization (#35)
• 2899ed3 Merge pull request #59 from webpack-contrib/feature/contenthash
• 7b56927 fix test inconsistency because of line endings
• fabcda6 change substr to substring
• 9b1bd63 docs: add documentation in README.md about how to extract all CSS in one file (#60)
• 726b3a4 add support for webpack's new contenthash support
• 2456895 chore: remove incorrectly commited dist folder (#56)
• 86adece Merge pull request #55 from webpack-contrib/feature/no-dup
• a534432 add documentation
• 7a98d7b add infrastructure for manual in browser testing
• e86fa3b avoid adding styles multiple times
• e062cd2 Merge pull request #25 from chenxsan/optimize-code
• 5adabf2 optimize source code

See the full diff

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