Update postcss-loader to version 0.7.0 🚀

[greenkeeperio-bot]

Hello 👋

🚀🚀🚀

postcss-loader just published its new version 0.7.0, 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 postcss-loader – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging 🌴

---

The new version differs by 23 commits .

• 60e38f5 Release 0.7 version
• 62df426 Update npm dependencies
• 8d40859 Add .editorconfig
• 52da875 Merge pull request #32 from postcss/feat.better-import-callback
• beb9a52 Added new API to facilitate postcss-import dependencies tracking with webpack
• 9105c68 Merge pull request #27 from olegakbarov/patch-1
• 9cb229b typo
• 246c90f Use PreCSS in examples
• 59653fb Merge pull request #24 from taion/patch-1
• 8585287 Fix cssnext usage in examples
• 284bfdf Release 0.6 version
• c75a001 Fix warnings from tests
• a9cb699 Other code clean up
• a64b233 Clean up code
• 4d97805 Update docs

There are 23 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 ⚡}